Qubit dynamics in an external laser field

Компьютерная оптика

Vitalii Semin¹  Daniil Vasilev¹ 

[1] Samara National Research University, Moskovskoye Shosse 34, 443086, Samara, Russia;

关键词: stochastic Schrödinger equation;    non-Markovian dynamics;    qubit;   

DOI  :  10.18287/2412-6179-2019-43-4-562-566

来源: DOAJ

【 摘 要 】

In this paper, dynamics of a qubit in an external laser field is investigated for the non-Markov environment described by an Ornstein-Uhlenbeck process. A non-linear non-Markovian stochastic Schrödinger equation is derived for the quantum system. The stochastic equation is preserved for a positive semi-definite of the density matrix and its trace. By the numerical solution of the equation, the probability of finding the system in the excited state and the influence of non-Markov noise parameters on this probability are studie.

【 授权许可】

Unknown