Sine-Gordon dynamics in spin transport
Fuente:
arXiv
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| Autor principal: | |
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| Formato: | Preprint |
| Publicado: |
2023
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| _version_ | 1866929428149305344 |
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| author | Visuri, A. -M. |
| author_facet | Visuri, A. -M. |
| contents | We study spin transport in a one-dimensional finite-length wire connected to fermionic leads. The interacting wire is described by the sine-Gordon model while the leads are either noninteracting or interacting Luttinger liquids. We calculate the spin current driven by a spin bias by solving numerically the classical equation of motion, and we find that the cosine term in the sine-Gordon model gives rise to an oscillating spin current when the spin bias exceeds its critical value. We discuss the results in connection with transport experiments with ultracold atoms. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_06862 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Sine-Gordon dynamics in spin transport Visuri, A. -M. Quantum Gases Strongly Correlated Electrons We study spin transport in a one-dimensional finite-length wire connected to fermionic leads. The interacting wire is described by the sine-Gordon model while the leads are either noninteracting or interacting Luttinger liquids. We calculate the spin current driven by a spin bias by solving numerically the classical equation of motion, and we find that the cosine term in the sine-Gordon model gives rise to an oscillating spin current when the spin bias exceeds its critical value. We discuss the results in connection with transport experiments with ultracold atoms. |
| title | Sine-Gordon dynamics in spin transport |
| topic | Quantum Gases Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2311.06862 |