Nowadays, countries regard quantum Internet
as one of the key points of scientific and technological development.
So, what is the quantum Internet?
What is the quantum Internet
Quantum Internet is a new type of Internet based on quantum mechanics as the theoretical basis. Unlike the data of binary , the quantum Internet is a network that transmits data in qubit rather than traditional bit form. Quantum bits can complete more complex data transmission and recording. Unlike the previous World Wide Web, this network has more powerful performance and faster speeds. Through the principles of quantum mechanics, it realizes access encryption and traceability, so the network is called the safest Internet.
What is the difference between the quantum Internet and the traditional Internet?
Simply put, the quantum Internet utilizes the unique principles of quantum physics , which is essentially different from the traditional Internet used today. Relevant experts believe that the quantum Internet can be regarded as a vast network composed of multiple quantum computers or other quantum devices. The core function is to fully realize the transmission of quantum information between any nodes, thereby opening a new era of quantum information processing.
A misunderstanding needs to be broken here: the quantum Internet and the traditional Internet are complementary, not substitute. The research team of Delft University of Technology in the Netherlands once published a review of the quantum Internet in the journal " Science " in the United States. The summary says that the quantum Internet will develop in concert with the classic Internet that people use today. By connecting to the quantum information processor, you can obtain capabilities that classic information processors cannot have.
The core technical foundation of the quantum Internet is the highly reliable quantum communication , that is, building a high-quality quantum communication channel to achieve high-fidelity and long-range transmission of quantum information. Just as the traditional Internet that is currently widely used requires infrastructure such as routers, switches, and , the implementation of quantum Internet also requires core technical devices such as quantum repeaters, quantum routers, and quantum memory.
Research and exploration
Optical observation helps build a pure silicon quantum Internet
uses silicon to develop quantum technology to provide an opportunity to rapidly expand quantum computing . Recently, researchers at Simon Fraser University in Canada (SFU) have made key breakthroughs in the development of quantum technology. A study published in the journal Nature on July 13 described their observations of more than 150,000 silicon "T-center" photon spin qubits, an important milestone that makes it possible to build large-scale scalable quantum computers and pure silicon quantum Internet.
non-adjacent node quantum stealth transmission is essential for building large-scale quantum networks
A study published by the British journal Nature on May 25 demonstrates the teleportation of quantum information between two non-adjacent nodes in a three-node quantum network. The experimental demonstrations reported to date on quantum teleportation have been limited to between two connected nodes. The stealth transmission between non-neighbor nodes is crucial to the construction of quantum networks (such as the quantum Internet).
Alice, the receiver of invisible quantum information. Within a black aluminum cylinder, the diamond sample is cooled to -270°C to reduce noise from the environment and enable quantum control. Image source: "Nature" online version
quantum state keeps time breaking record, helping to manufacture distributed quantum Internet
February 2022 Science and Technology Daily, according to "Science Progress" report, scientists from the U.S. Department of Energy (DOE) Argonne National Laboratory and of the University of Chicago have made major breakthroughs in quantum scientific research: they can read out qubits as needed and keep the quantum state intact for more than 5 seconds, thus setting a new record. David Osalom, the project's lead researcher and senior scientist at the Argonne National Laboratory, said, "5 seconds are enough to send light signals to the moon and achieve a return."Even after nearly 40 circles around the earth, this light can still correctly reflect the state of qubits, which paves the way for the manufacturing of a distributed quantum Internet. ”
Deployment and Planning
Henan Provincial Party Committee and Provincial Government "Opinions on Accelerating the Construction of a First-Class Innovation Ecology to Construction of a National Innovation Highland"
In December 2021, Henan Provincial Party Committee and Provincial Government "Opinions on Accelerating the Construction of a First-Class Innovation Ecology to Construction of a National Innovation Highland", which proposed to strengthen the leading edge of the sixth-generation mobile communication technology (6G), optoelectronic technology, quantum Internet, brain-like intelligence, laser technology, etc. Research along the technology and strive to achieve original breakthroughs.
2022 Sichuan Provincial People's Government Work Report
The 2022 Sichuan Provincial Government Work Report clearly states that we will strengthen the leading cutting-edge technology research in terahertz communication technology, storage technology, optoelectronic technology, quantum Internet, laser technology and other fields, and strive for original breakthroughs.
Expert opinions
html l4Academician of Chinese Academy of Sciences Pan Jianwei
Why is the entire Internet moving towards the quantum era? Because with the development of Quantum Communication technology, quantum communication technology can be used to greatly improve the security level of information transmission; at the same time, quantum computers in various places can be connected together to achieve efficient quantum processing.
Duan Runyao, Director of the Institute of Quantum Computing, Baidu Research Institute Duan Runyao
Quantum Internet has great advantages in transmission speed, channel capacity and security, which can further improve the performance of traditional Internet in these aspects. In addition, as the most important infrastructure for classic communications, the traditional Internet will continue to play a key role in the era of quantum Internet.
(Source: Internet Cangxian )
