Dissipative dynamics and cooling rates of trapped impurity atoms immersed in a reservoir gas

Lena, R. G. and Daley, A. J. (2020) Dissipative dynamics and cooling rates of trapped impurity atoms immersed in a reservoir gas. Physical Review A - Atomic, Molecular, and Optical Physics, 101 (3). 033612. ISSN 1050-2947 (https://doi.org/10.1103/PhysRevA.101.033612)

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Abstract

We study the dissipative dynamics of neutral atoms in anisotropic harmonic potentials, immersed in a reservoir species that is not trapped by the harmonic potential. Considering initial motional excitation of the atoms along one direction, we explore the resulting spontaneous emission of reservoir excitations, across a range of trap parameters from strong to weak radial confinement. In different limits these processes are useful as a basis for analogies to laser cooling, or as a means to introduce controlled dissipation to many-body dynamics. For realistic experimental parameters, we analyze the distribution of the atoms during the decay and determine the effects of heating arising from a finite temperature reservoir.

  • Item type:Article
    ID code:73191
    Dates:
    Date
    Event
    16 March 2020
    Published
    14 February 2020
    Accepted
    Subjects:Science > Physics
    Department:Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:14 Jul 2020 10:47
    Last modified:14 Apr 2024 00:51
    URI:https://strathprints.strath.ac.uk/id/eprint/73191
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