Atomic quantum dots coupled to BEC reservoirs
摘要
We study the dynamics of an atomic quantum dot, i.e. a single atom in a tight optical trap which is coupled to a superfluid reservoir via laser transitions. Quantum interference between the collisional interactions and the laser induced coupling to the phase fluctuations of the condensate results in a tunable coupling of the dot to a dissipative phonon bath, allowing an essentially complete decoupling from the environment. Quantum dots embedded in a 1D Luttinger liquid of cold bosonic atoms realize a spin-Boson model with ohmic coupling, which exhibits a dissipative phase transition and allows to directly measure atomic Luttinger parameters.
引用
@article{arxiv.cond-mat/0404533,
title = {Atomic quantum dots coupled to BEC reservoirs},
author = {A. Recati and P. O. Fedichev and W. Zwerger and J. von Delft and P. Zoller},
journal= {arXiv preprint arXiv:cond-mat/0404533},
year = {2015}
}
备注
5 pages, 2 figures. Submitted version. For the particular 1D case and its relation with Kondo physics see cond-mat/0212413