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Josephson oscillations in split one-dimensional Bose gases
by Yuri D. van Nieuwkerk, Jörg Schmiedmayer and Fabian H.L. Essler
- Published as SciPost Phys. 10, 090 (2021)
|As Contributors:||Fabian Essler · Jörg Schmiedmayer · Yuri Daniel van Nieuwkerk|
|Date submitted:||2021-02-15 08:25|
|Submitted by:||van Nieuwkerk, Yuri Daniel|
|Submitted to:||SciPost Physics|
We consider the non-equilibrium dynamics of a weakly interacting Bose gas tightly confined to a highly elongated double well potential. We use a self-consistent time-dependent Hartree–Fock approximation in combination with a projection of the full three-dimensional theory to several coupled one-dimensional channels. This allows us to model the time-dependent splitting and phase imprinting of a gas initially confined to a single quasi one-dimensional potential well and obtain a microscopic description of the ensuing damped Josephson oscillations.
Published as SciPost Phys. 10, 090 (2021)
Author comments upon resubmission
List of changes
-Expanded details of the transverse potential in Sec. 5.1 (Eqs. 54 and 55)
-Added a comment about the reemergence of the oscillations and the relevant time scales (bottom p. 20)
-Added a comment about the time scale of the damping vs the time scale of the gases' breathing motion (top of p. 22).
-Added a comment explaining the relevance of the equations that go beyond SCHF in Sec. 7.
-Elaborated on the useful applications of our work to the modelling of the experiments using (perturbations of) a sine-Gordon model.
Submission & Refereeing History
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Reports on this Submission
Anonymous Report 2 on 2021-2-24 (Invited Report)
I am grateful for the authors’ clarifications and find the answers to my questions, as well as the modification in the paper adequate. I therefore recommend this work for publication.
Anonymous Report 1 on 2021-2-17 (Invited Report)
I have read the resubmitted version of the manuscript, together with the authors' reply to my previous report.
I am fully satisfied with the authors' answers and changes, therefore I can recommend this paper for publication.