Journal article
On the low-energy description for tunnel-coupled one-dimensional Bose gases
- Abstract:
- We consider a model of two tunnel-coupled one-dimensional Bose gases with hard-wall boundary conditions. Bosonizing the model and retaining only the most relevant interactions leads to a decoupled theory consisting of a quantum sine-Gordon model and a free boson, describing respectively the antisymmetric and symmetric combinations of the phase fields. We go beyond this description by retaining the perturbation with the next smallest scaling dimension. This perturbation carries conformal spin and couples the two sectors. We carry out a detailed investigation of the effects of this coupling on the non-equilibrium dynamics of the model. We focus in particular on the role played by spatial inhomogeneities in the initial state in a quantum quench setup.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, 2.4MB, Terms of use)
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- Publisher copy:
- 10.21468/SciPostPhys.9.2.025
Authors
- Publisher:
- SciPost
- Journal:
- SciPost Physics More from this journal
- Volume:
- 9
- Issue:
- 2
- Article number:
- 25
- Publication date:
- 2020-08-25
- Acceptance date:
- 2020-07-31
- DOI:
- EISSN:
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2542-4653
- Language:
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English
- Keywords:
- Pubs id:
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1134913
- Local pid:
-
pubs:1134913
- Deposit date:
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2021-05-06
Terms of use
- Copyright holder:
- YD van Nieuwkerk and FHL Essler
- Copyright date:
- 2020
- Rights statement:
- Copyright Y. D. van Nieuwkerk and F. H. L Essler. This work is licensed under the Creative Commons Attribution 4.0 International License. Published by the SciPost Foundation.
- Licence:
- CC Attribution (CC BY)
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