2 thoughts on “The current situation of China's quantum communication industry”
Hazel
Compared with traditional communication technology, the characteristics and advantages of quantum communication technology are reflected in the high time limit, strong anti -interference, good confidentiality, and low signal ratio. The policy, my country has introduced a number of policies to promote the development of quantum communication. The "Fourteenth Five -Year Plan" that began in 2021 proposed that the total investment in research and development of the whole society should increase an average annual increase of more than 7%, and the quantum technology and manual manuality should be increased. Smart and semiconductor are listed as key R
The basic components of the quantum communication system include quantum generators, quantum channels and quantum measurement devices. By the information transmitted by it is classic or quantum, there are two categories. The former is mainly used for the transmission of quantum keys, and the latter can be used for quantum invisible transmission state and quantum entanglement distribution. The so -called invisible transmission refers to a "complete" information transmission from the real object. From a physics perspective, you can imagine the process of stealth transmission: first extract all the information of the original object, and then transmit the information to the receiving place. The receiver is based on this information to select the basic unit that constitutes the same original objects to create a completely the same raw. The perfect copy of the original. However, the principle of uncertainty of quantum mechanics does not allow all the information of the original matter to accurately extract, and this copy cannot be perfect. So for a long time, invisible transmission is just a kind of fantasy. In 1993, six scientists from different countries proposed a solution to realize the method of quantum invisible transmission by using the combination of classics and quantum: transmitting an unknown quantum state of a particle to another place, and another child. Preparation to this quantum state, and the original particles remain in the original place. The basic idea is to divide the original information into two parts: classic information and quantum information, which are transmitted to the receiver via the classic channels and quantum channels. Classic information is obtained by the sender for some measurement of the original. The quantum information is the rest of the information that the sender has not extracted in the measurement; after obtaining these two information, the receiver can prepare the complete quantum state of the original quantum state. replica. In this process, it is only the quantum state of the original, not the original itself. The sender can even know nothing about this quantum state, and the receiver is in the quantum state of the original. In this scheme, the entangled non -domain nature plays a vital role. Quantum mechanics is a non -domain theory, which has been confirmed by the experimental results of Bell's inequality. Therefore, quantum mechanics has shown many anti -intuitive effects. In the quantum mechanics, the two particles can be prepared in this way. The association between them cannot be classicly explained. This state is called entangled. Non -domain and atypical association. Quantum invisible transmission is not only important in the field of physics to people's understanding and revealing the mysterious laws of nature, but also can be used as an information carrier with quantum state. Confidential communication. In 1997, Pan Jianwei, a young Chinese scholar who studied in Austria, cooperated with Dutch scholar Polish and others to achieve remote transmission of unknown quantum state for the first time. This is the first time in the world to successfully transmit a quantum state from the photons of the A land to the photons in the B place. In the experiment, only the "state" that expresses the quantum information, and the photon as an information carrier is not transmitted. In order to carry out long -distance quantum -state invisible transmission, it is often necessary to make the two places in the distant place in advance to have the largest quantum entanglement. However, due to various unavoidable environmental noise, the quality of quantum entanglement will become worse and worse as the transmission distance increases. Therefore, how to purify high -quality quantum entanglement is an important issue in quantum communication research. The international research teams are studying this topic and proposed a series of theoretical solutions for the purification of quantum entanglement, but none of them can be achieved with existing technology. Pan Jianwei and others discovered that the use of existing technologies in experiments is a feasible quantum entanglement and purification theoretical solution, in principle solving the fundamental problem in long -distance quantum communication. The results of this research have been highly evaluated by the international scientific community and are known as "a leap in long -distance quantum communication research." In 1993, C.H.BenNett proposed the concept of quantum communication; in the same year, six scientists from different countries proposed a solution to realize quantum stealth transmission by using classics and quantum: the unknown quantum state of a particle of particle Transmit to another place, prepare another particle in the quantum state, and the original particles remain in the original place. The basic idea is to divide the original information into two parts: classic information and quantum information, which are transmitted to the receiver via the classic channels and quantum channels. Classic information is obtained by the sender for some measurement of the original material. The quantum information is the rest of the information that the sender has not extracted in the measurement; after obtaining these two information, the receiver can prepare the original quantum state state. Complete replica. In this process, it is only a quantum state of primary material, not the original itself. The sender can even know nothing about this quantum state, and the receiver is in the quantum state of the original material. In this scheme, the entangled non -domain nature plays an extremely important role. Quantum invisible transmission is not only important in the field of physics to people's understanding and revealing the mysterious laws of nature, but also can be used as an information carrier with quantum state. Quantum confidential communication. In 1997, Chinese young scholar who studied in Austria, Pan Jianwei, cooperated with Dutch scholar Polish and others to achieve remote transmission of unknown quantum state for the first time. This is the first time in the world to successfully transmit a quantum state from the photons of the A land to the photons in the B place. What is transmitted in the experiment is only the "state" that express quantum information, and the photon as an information carrier is not transmitted. In 2012, Chinese scientist Pan Jianwei and others successfully achieved a free space quantum invisible state and entanglement distribution of free space quantum quantum and entanglement for the first time in the world, laying a technical foundation for the world's first "quantum communication satellite". The international authoritative academic journal "Nature" magazine focused on the results on August 9. "The successful transmission of 100 kilometers on the high loss ground means that the transmission distance of low -loss space can reach more than 1,000 kilometers, which basically solves the problem of long -distance information transmission of quantum communication satellites." The breakthrough of the core technology of communication satellite also shows that the construction of a global quantum communication network in the future has technical feasibility. On August 9th, the international authoritative academic journal "Nature" focused on this result, representing its general recognition of the international academic community. "Nature" magazine said that it "is expected to become a milestone of long -distance quantum communication" and "to the globalized quantum network", and the European Physics Society website and the American "Science News" magazine also reported themselves. In comprehensive media reports such as "New Scientist" magazine, a group of Italian and Austrian scientists announced that they first identified the single -batch photon that rebounded back to the earth from the artificial satellite over the earth over the earth, and achieved the best of space secret Major breakthroughs in transmission of quantum information. This breakthrough indicates that safe quantum channels can be constructed between space and earth to transmit information for global communication. The results of this research are published in New Journal of Physics. The Paul Vorlaz and Kaisal Barbili at the University of Padova, Italy led this research team. Ajisai artificial satellites, which are 1,500 kilometers above the earth, launched photons and let this satellite rebound back to the original place of starting. This marks that the unshaps the quantum encoding communication is expected to be achieved through artificial satellites. The news will be welcomed by global communications companies and banks. It some saying "In June 2007, a group composed of Austrian, Britain, and Germany in quantum communication studies set the farthest record of 144 kilometers through quantum communication research, but the fact is 1997 1997 In the year, the Austrian Cai Linde team completed the principle experimental verification of quantum invisible transmission in the room for the first time. In 2004, the group used the Danube to fiber optic channel to successfully increase the quantum invisible transmission distance to 600 meters. In 2012, the good environment of the Ghana Islands in Spain was transmitted for 143 kilometers in the atmosphere. Only to break the world records of 16 kilometers and 97 kilometers set in Beijing and Qinghai Lake in Beijing and Qinghai Lake. is difficult to reach a farther distance, because the atmosphere is easy to interfere with the fragile quantum state of photon. The Barberry team came up with a solution to send photons through artificial satellites. As the atmosphere increases with the height, it is equivalent to 8 kilometers on the ground on the satellite. I due to the huge practical value and the feasibility of technology have been proven, China has announced on many occasions that it will launch human first quantum communication satellites in 2015. At the same time, it will cooperate with Austria to conduct the first quantum satellite communication test from Beijing to Vienna, and try to build a quantum communication network between the two places. , on the other hand, in order to confirm that the ground can observe the photon sent back from the rail satellite, the Austrian research team from the Matera laser ranging observation of Matera to Ajisai artificially artificially artificial A beam of ordinary laser emitting a satellite. Ajisai (Ajisai) artificial satellite consists of 318 -faced lenses. The single -batch photon rebounded from the precise lens returned to this observatory. This, Anton Zeilinger, a well -known quantum physicist who participated in the study of this study in Vienna, ANTON ZEILENGER, was a feasible technology from the quantum communication of space to the earth. Zhaolinger is building an artificial satellite to generate entangled photons, receive information and encodes information, and then reflect the encoding information back to establish a global quantum communication network. The quantum communication is the principle of quantum entanglement using particles such as photon. Quantum communication told people that in the micro world, no matter how far the distance between the two particles, the change of one particle will affect the phenomenon of another particle called quantum entanglement. This phenomenon is called "strange interaction" by Einstein. Scientists believe that this is a "magical power" that can become the foundation of quantum computers and quantum confidential systems with supercomputing power. The quantum communication is a new cross -disciplinary discipline combined with classic information theory and quantum mechanics. Compared with mature communication technology, quantum communication has huge superiority, has the characteristics of strong confidentiality, large capacity, long -distance transmission and other characteristics. Essence Quantum communication not only plays an important role in military, defense and other fields, but also greatly promote the development of the national economy. Since the US IBM researchers in 1993 proposed the theory of quantum communication, the National Science Foundation and the National Defense Advanced Research and Planning Agency have conducted in -depth research on this project. In 1999, the EU concentrated international forces to study the research of quantum communication. There are 12 projects. Japan's postal province take quantum communication as a 21st century strategic project. Professor Pan Jianwei and his colleagues of the National Laboratory of Hefei Micro -scale Material Science of China University of Science and Technology, using cold atomic quantum storage technology for the first time in the world to have entanglement with storage and read -out functions. The quantum entanglement between the two cold atomic comprehensives connected by the fiber. The quantum entanglement between this cold atomic comprehensive can be read and transformed into photon entanglement for further transmission and quantum operations. The results of the experiment perfectly realized the "quantum relatives" urgently needed in long -range quantum communication, and took a solid step towards the final realization of the future wide -area quantum communication network. The electronic relayrs who are shaped and enlarged in the traditional electronic communications to compensate for the decay of the signal. Austrian scientists have proposed in theory that they can achieve the combination of quantum storage technology and quantum entanglement and purification technology. Quantum relayrs, which ultimately achieve large -scale long -range quantum communication. The realization of quantum storage experiments has always had great difficulties. In order to solve the problem of quantum storage, people have done a lot of research. For example, partners of Duan Luming and its Austrian and the United States have proposed another type of quantum relay solution based on atomic comprehensive in 2001. Because this plan has the advantages of easy experimental implementation, it has received widespread attention from the academic world. However, subsequent research shows that due to severe problems such as the entangled state of the tangled state, such as entanglement, such as entanglement, and serious problems such as the length of the passage increase with the channel length, it cannot be used for actual long -range quantum communication. middle. In order to solve the above difficulties, Pan Jianwei, Chen Zengbing, and Zhao Bo, in theory, have proposed high -efficiency quantum repertoire schemes with storage functions, not sensitive to channel length, and low code rate. At the same time, Pan Jianwei ’s research team and scientists in Germany and Austria have gradually achieved the important stage results of photon -atomic entanglement, photon -optimized quantum invisible transmission state such as optical entanglement, photon -optimizing atomic quantum invisible transmission. Basic unit of quantum relay. Because of the significance of quantum relay experiments in quantum information research. A as a new generation of communication technology, quantum communication is one of the focus areas in international scientific research competition based on the efficient and absolute security of quantum information transmission. Hefei City ’s Quantum Communication Test Demonstration Network launched construction in July 2010, with investment of more than 60 million yuan. After more than a year of hard work by the University of Science and Technology of China and Anhui Quantum Communication Technology Co., Ltd., after the project was completed, the trial operation, all functions and indicators met the design requirements. The project passed the expert group organized by the Anhui Provincial Department of Science and Technology on March 29, 2012, and was officially put into use on the 30th. The quantum communication network with 46 nodes cover the main city of Hefei City, using optical fiber about 1,700 kilometers, and connecting 40 groups of "quantum telephone" users and 16 groups of "quantum video" through 6 access and control stations. user. The main users are government agencies, financial institutions, medical institutions, military industry enterprises and scientific research institutes with high information security, such as Hefei Public Security Bureau, Hefei Emergency Command Center, China University of Science and Technology, Hefei Third People's Hospital, and some banks Outlets, etc. The completion and use of Hefei quantum communication network marks the important step in the pre -industrial competition of quantum information after the basic study of quantum information in my country. Urban quantum communication networks in cities such as Beijing, Jinan, Urumqi and other cities in my country are also under construction. In the future, these cities will be connected through quantum satellites and other methods to form a wide -area quantum communication system in my country. On December 19, the Chinese Academy of Sciences held a seminar on the main battlefield of the national economy in Beijing, Bai Chunli, Dean of the Chinese Academy of Sciences, Yang Xiong, mayor of Shanghai, Guo Shuqing, governor of Shandong Province, Lou Qinjian, governor of Shaanxi Province, and industry companies Representatives and experts attended the meeting. The meeting focused on further implementation of the "first action" plan, further deepening the academic and provincial cooperation, academic and enterprise cooperation, and conducting in -depth discussions and exchanges with scientific and technological innovation to serve the economic and social development of science and technology. The signing ceremony of a series of cooperation agreements was held at the end of the meeting. Limited, China Railway Network Co., Ltd., ZTE Corporation, and Northern Information Technology Research Institute, as the first batch of representatives to send a strategic cooperation framework agreement, jointly initiated the establishment of the "China Quantum Communication Industry Alliance". The representative enterprise power of related industries will be widely organized, and it aims to promote the advantages of technology research and development, core manufacturing, infrastructure, application services, big data, Internet, and technology finance to promote the innovation chain chain and other fields to promote the innovation chain The linkage between the industrial chain and the capital chain, do a good job of the top -level design and strategic planning of the industry, promote the establishment and improvement of standards and specifications, give full play to the joint efforts of industrial development, build a sustainable development of the quantum communication industry ecosystem, and build the world's leading quantum communication industry. In recent years, with the quantum communication infrastructure represented by the University of HKUST ’s and quantum quantum quantum series products, a number of enterprises developed for application platforms and are committed to exploring commercial promotion quantum security communication services have continued to emerge. Shenzhou quantum quantum quantum , Suzhou Koda, CICC, Kyushu quantum, base point quantum, etc. are such pioneers. The country in the world is the first country in which the quantum communication is industrialized. It is understood that quantum communication can not only be used in national confidential communication in the fields of military, defense, etc. Financial, telecommunications, insurance, securities, banking, industry and commerce, finance and other fields and departments, and if technology is exactly mature, the future application market prospects will be extremely broad. "Breakthroughs in the quantum communication technology in my country, and the key period of the outbreak of the quantum communication industry, collaboration and cooperation will create greater value." This is the first quantum information industry development summit forum held on October 18th. Information passed by government people, experts, and representatives of the business community. In forums, Wen Ku, director of the Information and Communication Development Department of the Ministry of Industry and Information Technology, said that it will strongly support the application pilot and promotion of the application, and promote the pilot and application of quantum information technology in key areas of network information security, electronic government affairs, finance, and electricity. Market applications promote the development of the quantum communication industry. Through national steering and industrial funds, the support and guidance of multi -channel social capital, focusing on promoting the cooperation of upstream and downstream enterprises such as technology R
Compared with traditional communication technology, the characteristics and advantages of quantum communication technology are reflected in the high time limit, strong anti -interference, good confidentiality, and low signal ratio.
The policy, my country has introduced a number of policies to promote the development of quantum communication. The "Fourteenth Five -Year Plan" that began in 2021 proposed that the total investment in research and development of the whole society should increase an average annual increase of more than 7%, and the quantum technology and manual manuality should be increased. Smart and semiconductor are listed as key R
The basic components of the quantum communication system include quantum generators, quantum channels and quantum measurement devices. By the information transmitted by it is classic or quantum, there are two categories. The former is mainly used for the transmission of quantum keys, and the latter can be used for quantum invisible transmission state and quantum entanglement distribution. The so -called invisible transmission refers to a "complete" information transmission from the real object. From a physics perspective, you can imagine the process of stealth transmission: first extract all the information of the original object, and then transmit the information to the receiving place. The receiver is based on this information to select the basic unit that constitutes the same original objects to create a completely the same raw. The perfect copy of the original. However, the principle of uncertainty of quantum mechanics does not allow all the information of the original matter to accurately extract, and this copy cannot be perfect. So for a long time, invisible transmission is just a kind of fantasy.
In 1993, six scientists from different countries proposed a solution to realize the method of quantum invisible transmission by using the combination of classics and quantum: transmitting an unknown quantum state of a particle to another place, and another child. Preparation to this quantum state, and the original particles remain in the original place. The basic idea is to divide the original information into two parts: classic information and quantum information, which are transmitted to the receiver via the classic channels and quantum channels. Classic information is obtained by the sender for some measurement of the original. The quantum information is the rest of the information that the sender has not extracted in the measurement; after obtaining these two information, the receiver can prepare the complete quantum state of the original quantum state. replica. In this process, it is only the quantum state of the original, not the original itself. The sender can even know nothing about this quantum state, and the receiver is in the quantum state of the original.
In this scheme, the entangled non -domain nature plays a vital role. Quantum mechanics is a non -domain theory, which has been confirmed by the experimental results of Bell's inequality. Therefore, quantum mechanics has shown many anti -intuitive effects. In the quantum mechanics, the two particles can be prepared in this way. The association between them cannot be classicly explained. This state is called entangled. Non -domain and atypical association. Quantum invisible transmission is not only important in the field of physics to people's understanding and revealing the mysterious laws of nature, but also can be used as an information carrier with quantum state. Confidential communication. In 1997, Pan Jianwei, a young Chinese scholar who studied in Austria, cooperated with Dutch scholar Polish and others to achieve remote transmission of unknown quantum state for the first time. This is the first time in the world to successfully transmit a quantum state from the photons of the A land to the photons in the B place. In the experiment, only the "state" that expresses the quantum information, and the photon as an information carrier is not transmitted. In order to carry out long -distance quantum -state invisible transmission, it is often necessary to make the two places in the distant place in advance to have the largest quantum entanglement. However, due to various unavoidable environmental noise, the quality of quantum entanglement will become worse and worse as the transmission distance increases. Therefore, how to purify high -quality quantum entanglement is an important issue in quantum communication research.
The international research teams are studying this topic and proposed a series of theoretical solutions for the purification of quantum entanglement, but none of them can be achieved with existing technology. Pan Jianwei and others discovered that the use of existing technologies in experiments is a feasible quantum entanglement and purification theoretical solution, in principle solving the fundamental problem in long -distance quantum communication. The results of this research have been highly evaluated by the international scientific community and are known as "a leap in long -distance quantum communication research."
In 1993, C.H.BenNett proposed the concept of quantum communication; in the same year, six scientists from different countries proposed a solution to realize quantum stealth transmission by using classics and quantum: the unknown quantum state of a particle of particle Transmit to another place, prepare another particle in the quantum state, and the original particles remain in the original place. The basic idea is to divide the original information into two parts: classic information and quantum information, which are transmitted to the receiver via the classic channels and quantum channels. Classic information is obtained by the sender for some measurement of the original material. The quantum information is the rest of the information that the sender has not extracted in the measurement; after obtaining these two information, the receiver can prepare the original quantum state state. Complete replica. In this process, it is only a quantum state of primary material, not the original itself. The sender can even know nothing about this quantum state, and the receiver is in the quantum state of the original material. In this scheme, the entangled non -domain nature plays an extremely important role. Quantum invisible transmission is not only important in the field of physics to people's understanding and revealing the mysterious laws of nature, but also can be used as an information carrier with quantum state. Quantum confidential communication.
In 1997, Chinese young scholar who studied in Austria, Pan Jianwei, cooperated with Dutch scholar Polish and others to achieve remote transmission of unknown quantum state for the first time. This is the first time in the world to successfully transmit a quantum state from the photons of the A land to the photons in the B place. What is transmitted in the experiment is only the "state" that express quantum information, and the photon as an information carrier is not transmitted.
In 2012, Chinese scientist Pan Jianwei and others successfully achieved a free space quantum invisible state and entanglement distribution of free space quantum quantum and entanglement for the first time in the world, laying a technical foundation for the world's first "quantum communication satellite". The international authoritative academic journal "Nature" magazine focused on the results on August 9. "The successful transmission of 100 kilometers on the high loss ground means that the transmission distance of low -loss space can reach more than 1,000 kilometers, which basically solves the problem of long -distance information transmission of quantum communication satellites." The breakthrough of the core technology of communication satellite also shows that the construction of a global quantum communication network in the future has technical feasibility. On August 9th, the international authoritative academic journal "Nature" focused on this result, representing its general recognition of the international academic community. "Nature" magazine said that it "is expected to become a milestone of long -distance quantum communication" and "to the globalized quantum network", and the European Physics Society website and the American "Science News" magazine also reported themselves.
In comprehensive media reports such as "New Scientist" magazine, a group of Italian and Austrian scientists announced that they first identified the single -batch photon that rebounded back to the earth from the artificial satellite over the earth over the earth, and achieved the best of space secret Major breakthroughs in transmission of quantum information. This breakthrough indicates that safe quantum channels can be constructed between space and earth to transmit information for global communication. The results of this research are published in New Journal of Physics.
The Paul Vorlaz and Kaisal Barbili at the University of Padova, Italy led this research team. Ajisai artificial satellites, which are 1,500 kilometers above the earth, launched photons and let this satellite rebound back to the original place of starting. This marks that the unshaps the quantum encoding communication is expected to be achieved through artificial satellites. The news will be welcomed by global communications companies and banks.
It some saying "In June 2007, a group composed of Austrian, Britain, and Germany in quantum communication studies set the farthest record of 144 kilometers through quantum communication research, but the fact is 1997 1997 In the year, the Austrian Cai Linde team completed the principle experimental verification of quantum invisible transmission in the room for the first time. In 2004, the group used the Danube to fiber optic channel to successfully increase the quantum invisible transmission distance to 600 meters. In 2012, the good environment of the Ghana Islands in Spain was transmitted for 143 kilometers in the atmosphere. Only to break the world records of 16 kilometers and 97 kilometers set in Beijing and Qinghai Lake in Beijing and Qinghai Lake.
is difficult to reach a farther distance, because the atmosphere is easy to interfere with the fragile quantum state of photon. The Barberry team came up with a solution to send photons through artificial satellites. As the atmosphere increases with the height, it is equivalent to 8 kilometers on the ground on the satellite.
I due to the huge practical value and the feasibility of technology have been proven, China has announced on many occasions that it will launch human first quantum communication satellites in 2015. At the same time, it will cooperate with Austria to conduct the first quantum satellite communication test from Beijing to Vienna, and try to build a quantum communication network between the two places.
, on the other hand, in order to confirm that the ground can observe the photon sent back from the rail satellite, the Austrian research team from the Matera laser ranging observation of Matera to Ajisai artificially artificially artificial A beam of ordinary laser emitting a satellite. Ajisai (Ajisai) artificial satellite consists of 318 -faced lenses. The single -batch photon rebounded from the precise lens returned to this observatory.
This, Anton Zeilinger, a well -known quantum physicist who participated in the study of this study in Vienna, ANTON ZEILENGER, was a feasible technology from the quantum communication of space to the earth. Zhaolinger is building an artificial satellite to generate entangled photons, receive information and encodes information, and then reflect the encoding information back to establish a global quantum communication network.
The quantum communication is the principle of quantum entanglement using particles such as photon. Quantum communication told people that in the micro world, no matter how far the distance between the two particles, the change of one particle will affect the phenomenon of another particle called quantum entanglement. This phenomenon is called "strange interaction" by Einstein. Scientists believe that this is a "magical power" that can become the foundation of quantum computers and quantum confidential systems with supercomputing power.
The quantum communication is a new cross -disciplinary discipline combined with classic information theory and quantum mechanics. Compared with mature communication technology, quantum communication has huge superiority, has the characteristics of strong confidentiality, large capacity, long -distance transmission and other characteristics. Essence Quantum communication not only plays an important role in military, defense and other fields, but also greatly promote the development of the national economy. Since the US IBM researchers in 1993 proposed the theory of quantum communication, the National Science Foundation and the National Defense Advanced Research and Planning Agency have conducted in -depth research on this project. In 1999, the EU concentrated international forces to study the research of quantum communication. There are 12 projects. Japan's postal province take quantum communication as a 21st century strategic project.
Professor Pan Jianwei and his colleagues of the National Laboratory of Hefei Micro -scale Material Science of China University of Science and Technology, using cold atomic quantum storage technology for the first time in the world to have entanglement with storage and read -out functions. The quantum entanglement between the two cold atomic comprehensives connected by the fiber. The quantum entanglement between this cold atomic comprehensive can be read and transformed into photon entanglement for further transmission and quantum operations. The results of the experiment perfectly realized the "quantum relatives" urgently needed in long -range quantum communication, and took a solid step towards the final realization of the future wide -area quantum communication network.
The electronic relayrs who are shaped and enlarged in the traditional electronic communications to compensate for the decay of the signal. Austrian scientists have proposed in theory that they can achieve the combination of quantum storage technology and quantum entanglement and purification technology. Quantum relayrs, which ultimately achieve large -scale long -range quantum communication. The realization of quantum storage experiments has always had great difficulties. In order to solve the problem of quantum storage, people have done a lot of research. For example, partners of Duan Luming and its Austrian and the United States have proposed another type of quantum relay solution based on atomic comprehensive in 2001. Because this plan has the advantages of easy experimental implementation, it has received widespread attention from the academic world. However, subsequent research shows that due to severe problems such as the entangled state of the tangled state, such as entanglement, such as entanglement, and serious problems such as the length of the passage increase with the channel length, it cannot be used for actual long -range quantum communication. middle.
In order to solve the above difficulties, Pan Jianwei, Chen Zengbing, and Zhao Bo, in theory, have proposed high -efficiency quantum repertoire schemes with storage functions, not sensitive to channel length, and low code rate. At the same time, Pan Jianwei ’s research team and scientists in Germany and Austria have gradually achieved the important stage results of photon -atomic entanglement, photon -optimized quantum invisible transmission state such as optical entanglement, photon -optimizing atomic quantum invisible transmission. Basic unit of quantum relay. Because of the significance of quantum relay experiments in quantum information research.
A as a new generation of communication technology, quantum communication is one of the focus areas in international scientific research competition based on the efficient and absolute security of quantum information transmission. Hefei City ’s Quantum Communication Test Demonstration Network launched construction in July 2010, with investment of more than 60 million yuan. After more than a year of hard work by the University of Science and Technology of China and Anhui Quantum Communication Technology Co., Ltd., after the project was completed, the trial operation, all functions and indicators met the design requirements. The project passed the expert group organized by the Anhui Provincial Department of Science and Technology on March 29, 2012, and was officially put into use on the 30th.
The quantum communication network with 46 nodes cover the main city of Hefei City, using optical fiber about 1,700 kilometers, and connecting 40 groups of "quantum telephone" users and 16 groups of "quantum video" through 6 access and control stations. user. The main users are government agencies, financial institutions, medical institutions, military industry enterprises and scientific research institutes with high information security, such as Hefei Public Security Bureau, Hefei Emergency Command Center, China University of Science and Technology, Hefei Third People's Hospital, and some banks Outlets, etc.
The completion and use of Hefei quantum communication network marks the important step in the pre -industrial competition of quantum information after the basic study of quantum information in my country. Urban quantum communication networks in cities such as Beijing, Jinan, Urumqi and other cities in my country are also under construction. In the future, these cities will be connected through quantum satellites and other methods to form a wide -area quantum communication system in my country.
On December 19, the Chinese Academy of Sciences held a seminar on the main battlefield of the national economy in Beijing, Bai Chunli, Dean of the Chinese Academy of Sciences, Yang Xiong, mayor of Shanghai, Guo Shuqing, governor of Shandong Province, Lou Qinjian, governor of Shaanxi Province, and industry companies Representatives and experts attended the meeting. The meeting focused on further implementation of the "first action" plan, further deepening the academic and provincial cooperation, academic and enterprise cooperation, and conducting in -depth discussions and exchanges with scientific and technological innovation to serve the economic and social development of science and technology.
The signing ceremony of a series of cooperation agreements was held at the end of the meeting. Limited, China Railway Network Co., Ltd., ZTE Corporation, and Northern Information Technology Research Institute, as the first batch of representatives to send a strategic cooperation framework agreement, jointly initiated the establishment of the "China Quantum Communication Industry Alliance".
The representative enterprise power of related industries will be widely organized, and it aims to promote the advantages of technology research and development, core manufacturing, infrastructure, application services, big data, Internet, and technology finance to promote the innovation chain chain and other fields to promote the innovation chain The linkage between the industrial chain and the capital chain, do a good job of the top -level design and strategic planning of the industry, promote the establishment and improvement of standards and specifications, give full play to the joint efforts of industrial development, build a sustainable development of the quantum communication industry ecosystem, and build the world's leading quantum communication industry.
In recent years, with the quantum communication infrastructure represented by the University of HKUST ’s and quantum quantum quantum series products, a number of enterprises developed for application platforms and are committed to exploring commercial promotion quantum security communication services have continued to emerge. Shenzhou quantum quantum quantum , Suzhou Koda, CICC, Kyushu quantum, base point quantum, etc. are such pioneers.
The country in the world is the first country in which the quantum communication is industrialized. It is understood that quantum communication can not only be used in national confidential communication in the fields of military, defense, etc. Financial, telecommunications, insurance, securities, banking, industry and commerce, finance and other fields and departments, and if technology is exactly mature, the future application market prospects will be extremely broad.
"Breakthroughs in the quantum communication technology in my country, and the key period of the outbreak of the quantum communication industry, collaboration and cooperation will create greater value." This is the first quantum information industry development summit forum held on October 18th. Information passed by government people, experts, and representatives of the business community.
In forums, Wen Ku, director of the Information and Communication Development Department of the Ministry of Industry and Information Technology, said that it will strongly support the application pilot and promotion of the application, and promote the pilot and application of quantum information technology in key areas of network information security, electronic government affairs, finance, and electricity. Market applications promote the development of the quantum communication industry. Through national steering and industrial funds, the support and guidance of multi -channel social capital, focusing on promoting the cooperation of upstream and downstream enterprises such as technology R