Abstract The research group of Academician Du Jiangfeng of China University of Science and Technology used the spin in diamond as a quantum processor to realize the quantum factor decomposition quantum algorithm based on solid single spin system for the first time under atmospheric conditions at room temperature. The research results were recently published in the Physical Review Letters. RSA key system...
The research team of Academician Du Jiangfeng of China University of Science and Technology used the spin in diamond as a quantum processor to realize the quantum factor decomposition quantum algorithm based on solid single spin system for the first time under room temperature atmospheric conditions. The research results were recently published in the Physical Review Letters. The RSA key system is a commonly used encryption method in the fields of finance, network, etc., and it is safe because there is no effective way to complete the prime factor decomposition of large numbers in a reasonable time for classical calculation. In 1994, American scientist PeterShor proposed a quantum computer-based prime factor decomposition algorithm, known as the Shor algorithm, which theoretically proved that quantum computers can exponentially accelerate the prime factor decomposition of large numbers, so that the best computers used today need to be Quantum computers can be completed in an instant in computing tasks that can only be completed in a million years.
However, the Shor algorithm is based on the traditional quantum line mode. Due to the difficulty of the experiment, there has not been a new breakthrough since the UK's research group achieved the factorization of 21 in 2012. How to achieve adiabatic mass factor decomposition in a more practical and room temperature solid-state system has been a major challenge in the academic world.
Du Jiangfeng's research group used the spin in diamond as the quantum bit, and realized the quantum decomposition algorithm based on solid single spin system for the first time under room temperature atmospheric conditions. Taking the decomposition of 35 as an example, they completely demonstrated the whole process of the adiabatic sub-decomposition algorithm and got the solution of the problem with high fidelity. In order to overcome the problem that the diamond single spin quantum coherence time is not long enough, they developed an optimal control technique for the nuclear and electronic hybrid system, which improved the fidelity of the quantum evolution process. This optimized control technique is universal and can be applied to other spin systems.
Diamond single spin is an experimental system that is currently considered to have the potential to build room temperature solid-state quantum computers. This work demonstrates the ability to implement complex quantum algorithms in this system and is an important step toward building room-temperature solid-state quantum computers. In the future, using the coupling between internal spins in diamond or the coupling of diamond NV color center spin to the optical cavity mode, it is expected to realize a scalable quantum computing system and realize practical quantum factor decomposition.
Clips Fittings,Chain Link Fence Fittings,Post Clips Fittings,Fence Post Accessories
Anping Xinlong Wire Mesh Manufacture Co.,Ltd. , https://www.hbzhaoxuan.com