论文编号:
第一作者所在部门:
论文题目:	Controllable dissipation of a qubit coupled to an engineering reservoir
论文题目英文:
作者:	Shen, H. Z.; Xu, Shuang; Yi, Su; Yi, X. X.
论文出处:
刊物名称:	PHYSICAL REVIEW A
年:	2018
卷:	98
期:	6
页:	62106
联系作者:	Yi, XX (reprint author)
收录类别:
影响因子:
摘要:	The dynamics and non-Markovianity of an atomic impurity qubit (AIQ) immersed in a structured environment is explored where the AIQ is driven by a two-dimensional field and the environment is a quasi-two-dimensional dipolar Bose-Einstein condensate (dBEC). We derive a non-Markovian master equation for the AIQ with initial correlation between the qubit and the dBEC, which contains all the influences of the non-Markovian environment on the atomic impurity qubit. Analyzing the spectrum density for the AIQ-dBEC coupled system and solving the dynamics of the qubit, we find that the atomic impurity qubit can be partially stabilized in its excited state by controlling the x-direction field with the y-direction field fixed. Our analysis reveals that it is the formation of the system-environment bound state that results in such a suppressed dissipation. The present paper is helpful for understanding the effect of the structured and modulated environment and enriches the dynamics of an open system.
英文摘要:
外单位作者单位:
备注: