首页|Exact quantum dynamics for two-level systems with time-dependent driving

Exact quantum dynamics for two-level systems with time-dependent driving

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It is well known that the time-dependent Schrrödinger equation can only be solved exactly in very rare cases,even for two-level quantum systems.Thus,finding the exact quantum dynamics under a time-dependent Hamiltonian is not only fundamentally important in quantum physics but also facilitates active quantum manipulations for quantum information processing.In this work,we present a method for generating nearly infinite analytically assisted solutions to the Schrödinger equation for a qubit under time-dependent driving.These analytically assisted solutions feature free parameters with only boundary restrictions,making them applicable in a variety of precise quantum manipulations.Due to the general form of the time-dependent Hamiltonian in our approach,it can be readily implemented in various experimental setups involving qubits.Consequently,our scheme offers new solutions to the Schrödinger equation,providing an alternative analytical framework for precise control over qubits.

quantum computationquantum controlanalytical solution

贺郅程、吴奕璇、薛正远

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Key Laboratory of Atomic and Subatomic Structure and Quantum Control(Ministry of Education),Guangdong Basic Research Center of Excellence for Structure and Fundamental Interactions of Matter,and School of Physics,South China Normal University,Guangzhou 510006,China

Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials,Guangdong-Hong Kong Joint Laboratory of Quantum Matter,and Frontier Research Institute for Physics,South China Normal University,Guangzhou 510006,China

Hefei Nationa

2024

10.1088/1674-1056/ad8a4c

中国物理B(英文版)
中国物理学会和中国科学院物理研究所

中国物理B(英文版)

CSTPCDEI
影响因子：0.995
ISSN：1674-1056
年,卷(期)：2024.33(12)