General quantum simulator based on cold atom system

Abstract

Disclosed is a general quantum simulator based on a cold atom system, the alkali metal atom hyperfine structure Zeeman magneton multi-energy-level system is used for simulating a multi-dimensional physical and chemical model, and the specific physical and chemical model can be mapped to the specific energy level of atoms by the focusing mapping relation. Any coupling between two energy levels can be realized by regulating and controlling the intensity, the frequency and the phase of the microwave signal generated by the arbitrary waveform device. In combination with a plurality of arbitrary waveform generators, arbitrary regulation and control of a multi-dimensional system can be realized. According to the regulation and control requirements of a specific physical system, the general quantum simulator can be realized by regulating microwave signals; the invention has the advantages that the method is universal, the invention is not limited to specific physical and chemical models, quantum simulation of any multi-dimensional system can be achieved, and the method has wide application prospects and scientific research value for current quantum science and technology suddenly-advancing times.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of quantum simulation, and in particular to a general quantum simulator based on a cold atom system. Background technique [0002] In 1982, Richard P. Feynman, a famous American physicist, conceived a super powerful calculator that runs on microscopic particles, which he called "quantum computer". His central idea is that quantum devices can use the principles of quantum entanglement and quantum superposition to perform calculations that classical computers cannot. Two new concepts are derived from this idea: quantum computing and quantum simulation. Quantum simulation is to use a controllable quantum system to simulate the quantum system to be studied. It can be used as an effective experimental method to study problems that are difficult to calculate by classical computers and phenomena that cannot be realized under experimental conditions. [0003] In the research of condensed ...

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Problems solved by technology

[0003] In the research of condensed matter physics, although brilliant achievements have been made in many aspects, due to the limitations of experimental systems and research methods, there are still many unsolved problems in the field of strongly correlated many bodies, such as high-temperature superconductivity, quantum Magnets, quantum phase transitions, etc.

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