From the official website of China University of Science and Technology, the Chinese Academy of Sciences, the key laboratory of the Chinese Academy of Sciences, the first time, for the first time, to achieve a programmable quantum processor based on a solid spin system under atmospheric conditions. Research results were published on "NPJ Quantum Information" on January 25.
It is understood that quantum calculations use quantum superposition to effectively handle many difficult problems in the classic computational science. Programmable quantum computing is an important condition for quantum calculation of practicalization. For classic calculations, users typically use the same hardware architecture to flexibly complete a variety of calculation tasks.
However, most quantum calculation experiments are only designed to run a specific quantum algorithm. If the new quantum algorithm is to be performed, the hardware of the quantum calculation is often required.
Programmable quantum computing concepts are used to solve this problem. It can implement various quantum algorithms only if they do not change the hardware, they can only configure several parameters of these quantum processors.
However, due to quantum bits in the room temperature solid system, the quantum coherence is very susceptible to damage, so it is still a daunting challenge in the room temperature solid system.
Du Jiangfeng Test Group uses the electronic spin and nucleus of the diamond as two quantum bit systems, and the first time the room temperature solid spin programmable quantum processor is realized. The researchers use the green laser pulse to achieve the initialization and reading functions of the quantum processor, and utilize a series of high-precision microwaves to perform quantum algorithms.
They designed a class of universal quantum lines that transform the execution of a series of quantum algorithms into the amplitude and phase parameters of the corresponding microwave and radio frequency pulses. For the user, only a variety of quantum algorithms can be completed to avoid cumbersome and expensive hardware reconfigurations for this series of parameters.
This work demonstrates the flexibility of programmable quantum processors, and makes an important step toward the constructing room temperature solid quantum.
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Original address: https://www.eeboard.com/news/liangzichuliqi-2/
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