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Decoherence Speed Limit: Controlling Decoherence Speed Limit of a Single Impurity Atom in a Bose–Einstein‐Condensate Reservoir (Ann. Phys. 2/2019)
Author(s) -
Song YaJu,
Kuang LeMan
Publication year - 2019
Publication title -
annalen der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.009
H-Index - 68
eISSN - 1521-3889
pISSN - 0003-3804
DOI - 10.1002/andp.201970016
Subject(s) - quantum decoherence , physics , bose–einstein condensate , limit (mathematics) , quantum mechanics , atom (system on chip) , impurity , scattering , scattering length , condensed matter physics , quantum electrodynamics , quantum , mathematical analysis , mathematics , computer science , embedded system
In article number 1800423 , Ya‐Ju Song and Le‐Man Kuang study the decoherence speed limit (DSL) of an impurity trapped in a double‐well interacting with a Bose‐Einstein‐condensed (BEC) reservoir. They found the DSL can be controlled by changing the BEC scattering length, effective BEC dimension, well spacing and depth. The regulation mechanism is also analyzed at root of the spectral density.