Quantum computing has become one of the hottest research projects. The implementation of quantum bits as an information carrier is a key technology for quantum computer research.
Recently, research and development teams from the Institute of Microelectronics of the Chinese Academy of Sciences and Inspur Electronic Information Industry Co., Ltd. have jointly published papers with relevant researchers from Chongqing University of Posts and Telecommunications and Xiamen University, and proposed theoretical ideas for constructing quantum computers with multi-electronic semiconductor quantum rings. Quantum bit implementation.
As the author of the article, Prof. Wu Zhenhua, an IC pioneering research and development center of the Institute of Microelectronics of the Chinese Academy of Sciences, said in an interview with a reporter from Science and Technology Daily: “The use of semiconductor quantum rings to build qubits is a new idea based on existing mature semiconductor technology to build quantum computers. ."
Transistor size close to the physical limit
For the past 40 years, the microelectronics industry has been following Moore's Law's predictions for continuous and rapid development.
"But as technology advances, device integration is getting higher and higher, the number of transistors on the chip is increasing, and the size of a single transistor is getting smaller and smaller. It can be said that the current semiconductor chip development has approached the physical limit of the size, The era of Moore's Law is coming to an end and there is an urgent need to develop new computing principles and new device architectures to meet the ever-growing demand for computing.†Wu Zhenhua explained, “In this context, scientists from all over the world have vigorously studied the law of quantum mechanics and developed quantum computing and quantum. Information Technology, with a view to developing a practical quantum computer that can replace traditional computers, realizing ultra-high quantum parallel super computing capabilities."
“Quantum computers realize the growth of computing power through superposition and entanglement of quantum phenomena. Quantum superposition allows qubits to have both 0 and 1 values ​​at the same time, allowing for 'synchronous calculations'. With each additional qubit, computing performance doubles. Another paper's correspondent, Influenza's artificial intelligence and high-performance computing department said Dr. Liu Yu.
At present, technology companies such as Google, Microsoft, IBM, and Intel have all researched quantum computing. Liu Yu said that IBM claimed to have successfully developed a 50-bit qubit prototype; Google’s Quantum Hardware Director John Martinis revealed that Google already had 22 qubit chips in October; China is also 2017 In early May of this year, the world’s first light-quantum computer that surpassed the early classical computer was released, and 10 superconducting qubits were successfully entangled. It is expected that 20 superconducting qubits can be manipulated in the near future.
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