Prethermalization in the cooling dynamics of an impurity in a Bose-Einstein condensate
Lausch T, Widera A, Fleischhauer M (2018)
Publication Type: Journal article
Publication year: 2018
Journal
Book Volume: 97
Article Number: 023621
Journal Issue: 2
DOI: 10.1103/PhysRevA.97.023621
Abstract
We discuss the cooling dynamics of heavy impurity atoms in a Bose-Einstein condensate (BEC) by emission of Cherenkov phonons from scattering with the condensate. In a weakly interacting low-temperature condensate, different scattering processes result in a separation of time scales of the thermalization dynamics. Prethermalized states are formed with distinct regions of impurity momenta determined by the mass ratio of impurity and BEC atoms. This can be employed to detect the mass renormalization of the impurity upon the formation of a polaron and paves the way to preparing nonequilibrium impurity-momentum distributions.
Involved external institutions
Germany (DE)How to cite
APA:
Lausch, T., Widera, A., & Fleischhauer, M. (2018). Prethermalization in the cooling dynamics of an impurity in a Bose-Einstein condensate. Physical Review A, 97(2). https://dx.doi.org/10.1103/PhysRevA.97.023621
MLA:
Lausch, Tobias, Artur Widera, and Michael Fleischhauer. "Prethermalization in the cooling dynamics of an impurity in a Bose-Einstein condensate." Physical Review A 97.2 (2018).
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