期刊论文

Kuang, Le-Man

英文

Annalen der Physik

0003-3804

2019

531

2

1800423-

10.1002/andp.201800423

The authors thank Prof. Chang-Pu Sun, Dr. Ji-Bing Yuan, and Jin-Feng Huang for helpful discussions. This work was supported by NSFC (Grants Nos. 11775075, 11434011, 11534002, and 11847010), the National Basic Research Program of China (Grants Nos. 2016YFA0301201 and 2014CB921403), the NSAF (Grants Nos. U1730449 and U1530401), the Science Foundation of Hengyang Normal University under Grant No. 17D19, and the Open Foundation of Hunan Normal University under Grant No. QSQC1804.

本校为其他机构

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 phys...