摘要
In this paper, we present a quantitative sufficient condition for adiabatic approximation in PT-symmetric quantum mechanics,which yields that a state of the PT-symmetric quantum system at any time will remain approximately in the m-th eigenstate up to a multiplicative phase factor whenever it is initially in the m-th eigenstate of the Hamiltonian. In addition, we estimate the approximation errors by the distance and the fidelity between the exact solution and the adiabatic approximate solution to the time evolution equation, respectively.
In this paper, we present a quantitative sufficient condition for adiabatic approximation in PT-symmetric quantum mechanics, which yields that a state of the PT-symmetric quantum system at any time will remain approximately in the m-th eigenstate up to a multiplicative phase factor whenever it is initially in the m-th eigenstate of the Hamiltonian. In addition, we estimate the approximation errors by the distance and the fidelity between the exact solution and the adiabatic approximate solution to the time evolution equation, respectively.
基金
supported by the National Natural Science Foundation of China(Grant Nos.11171197 and 11371012)
the Science Research Foundation of Education Department of Shaanxi Provincial Government(Grant No.11JK0513)
the Fundamental Research Funds for the Central Universities(Grant No.GK201402005 and GK201301007)
the Postdoctoral Science Foundation of China(Grant No.2014M552405)
the Natural Science Research Program of Shaanxi Province(Grant No.2014JQ1010)
