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Equilibration of a finite-temperature binary Bose gas formed by population transfer

Lookup NU author(s): Robert Pattinson, Professor Nikolaos ProukakisORCiD, Professor Nick ParkerORCiD

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Abstract

We consider an equilibrium single-species homogeneous Bose gas from which a proportion of the atoms are instantaneously and coherently transferred to a second species, thereby forming a binary Bose gas in a non-equilibrium initial state. We study the ensuing evolution towards a new equilibrium, mapping the dynamics and final equilibrium state out as a function of the population transfer and the interspecies interactions by means of classical field methods. While in certain regimes, the condensate fractions are largely unaffected by the population transfer process, in others, particularly for immiscible interactions, one or both condensate fractions are vastly reduced to a new equilibrium value.


Publication metadata

Author(s): Pattinson RW, Proukakis NP, Parker NG

Publication type: Article

Publication status: Published

Journal: Physical Review A

Year: 2014

Volume: 90

Issue: 3

Pages: 033625-1-033625-8

Print publication date: 24/09/2014

ISSN (print): 1050-2947

ISSN (electronic): 1094-1622

Publisher: American Physical Society

URL: http://dx.doi.org/10.1103/PhysRevA.90.033625

DOI: 10.1103/PhysRevA.90.033625


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Funding

Funder referenceFunder name
N8 consortium
EP/K000225/1EPSRC
EP/K03250X/1EPSRC

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