Controlling Decoherence Speed Limit of a Single Impurity Atom in a Bose-Einstein-Condensate Reservoir
Controlling Decoherence Speed Limit of a Single Impurity Atom in a Bose-Einstein-Condensate Reservoir
复制标题
控制玻色-爱因斯坦凝聚态储层中单个杂质原子的退相干速度极限
DOI：
10.1002/andp.201800423
复制
发表时间：
2019
影响因子：
2.4
通讯作者：
Kuang Le Man
中科院分区：
文献类型：
--
作者：
Song Ya Ju;Kuang Le Man
The decoherence speed limit (DSL) of a single impurity atom immersed in a Bose‐Einstein‐condensed (BEC) reservoir when the impurity atom is in a double‐well potential is studied. It is demonstrated how the DSL of the impurity atom can be manipulated by engineering the BEC reservoir and the impurity potential within experimentally realistic limits. It is shown that the DSL can be controlled by changing key parameters such as the condensate scattering length, the effective dimension of the BEC reservoir, and the spatial configuration of the double‐well potential imposed on the impurity. The physical mechanisms of controlling the DSL at root of the spectral density of the BEC reservoir are uncovered.
