期刊论文

Yuan, Ji-Bing

英文

Journal of Low Temperature Physics

0022-2291

2017

189

3-4

147-157

10.1007/s10909-017-1797-8

National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [11547258, 11647129]; Scientific Research Fund of Hunan Provincial Education Department of ChinaHunan Provincial Education Department [16B036, 15A028]; Hunan Provincial Natural Science Foundation of ChinaNatural Science Foundation of Hunan Province [2017JJ3005, 2016JJ2009, 2015JJ3029]; Science and Technology Plan Project of Hunan Province [2016TP1020]; Science Foundation of Hengyang Normal University of China [15B21, 14B38]; Hunan Provincial Applied Basic Research Base of Optoelectronic Information Technology [GD16K05]

本校为第一且通讯机构

We study temperature effects on non-Markovian dynamics in a model of an atomic impurity qubit immersed in a quasi-two-dimensional dipolar Bose-Einstein condensate , which can be described as a pure dephasing spin-boson model. We use the measure proposed by Breuer et al. (Phys Rev Lett 103:210401, 2009) to characterize non-Markovianity of the quantum process and find for larger relative dipole-dipole interaction, properly low temperature can induce the non-Markovianity enhancement. We give an explanation of the non-Markovianity enhancement that raising temperature can increase the sharpness of ...