The sine-Gordon model from coupled condensates: a Generalized Hydrodynamics viewpoint
Fuente:
arXiv
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| Autore principale: | |
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| _version_ | 1866909068267880448 |
|---|---|
| author | Bastianello, Alvise |
| author_facet | Bastianello, Alvise |
| contents | The sine-Gordon model captures the low-energy effective dynamics of a wealth of one-dimensional quantum systems, stimulating the experimental efforts in building a versatile quantum simulator of this field theory and fueling the parallel development of new theoretical toolkits able to capture far-from-equilibrium settings. In this work, we analyze the realization of sine-Gordon from the interference pattern of two one-dimensional quasicondensates: we argue the emergent field theory is well described by its classical limit and develop its large-scale description based on Generalized Hydrodynamics. We show how, despite sine-Gordon being an integrable field theory, trap-induced inhomogeneities cause instabilities of excitations and provide exact analytical results to capture this effect. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2310_04493 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | The sine-Gordon model from coupled condensates: a Generalized Hydrodynamics viewpoint Bastianello, Alvise Statistical Mechanics Quantum Gases Exactly Solvable and Integrable Systems Quantum Physics The sine-Gordon model captures the low-energy effective dynamics of a wealth of one-dimensional quantum systems, stimulating the experimental efforts in building a versatile quantum simulator of this field theory and fueling the parallel development of new theoretical toolkits able to capture far-from-equilibrium settings. In this work, we analyze the realization of sine-Gordon from the interference pattern of two one-dimensional quasicondensates: we argue the emergent field theory is well described by its classical limit and develop its large-scale description based on Generalized Hydrodynamics. We show how, despite sine-Gordon being an integrable field theory, trap-induced inhomogeneities cause instabilities of excitations and provide exact analytical results to capture this effect. |
| title | The sine-Gordon model from coupled condensates: a Generalized Hydrodynamics viewpoint |
| topic | Statistical Mechanics Quantum Gases Exactly Solvable and Integrable Systems Quantum Physics |
| url | https://arxiv.org/abs/2310.04493 |