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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2401.12294 |
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| _version_ | 1866909215687180288 |
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| author | Bu, Yanyan Gao, Hongfei Gao, Xin Li, Zhiwei |
| author_facet | Bu, Yanyan Gao, Hongfei Gao, Xin Li, Zhiwei |
| contents | We study a nearly critical superfluid system from two complementary approaches. Within the first approach, we formulate a Schwinger-Keldysh effective field theory (EFT) for the system when it is located slightly above the critical temperature. . The set of symmetries, particularly the dynamical Kubo-Martin-Schwinger (KMS) symmetry and chemical shift symmetry, strictly constrains the form of EFT action. Within the second approach, using the holographic Schwinger-Keldysh technique, we derive the effective action for a ``microscopic'' holographic superfluid, confirming the EFT construction. A systematic inclusion of non-Gaussianity is one highlight of present study. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_12294 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Nearly critical superfluid: effective field theory and holography Bu, Yanyan Gao, Hongfei Gao, Xin Li, Zhiwei High Energy Physics - Theory We study a nearly critical superfluid system from two complementary approaches. Within the first approach, we formulate a Schwinger-Keldysh effective field theory (EFT) for the system when it is located slightly above the critical temperature. . The set of symmetries, particularly the dynamical Kubo-Martin-Schwinger (KMS) symmetry and chemical shift symmetry, strictly constrains the form of EFT action. Within the second approach, using the holographic Schwinger-Keldysh technique, we derive the effective action for a ``microscopic'' holographic superfluid, confirming the EFT construction. A systematic inclusion of non-Gaussianity is one highlight of present study. |
| title | Nearly critical superfluid: effective field theory and holography |
| topic | High Energy Physics - Theory |
| url | https://arxiv.org/abs/2401.12294 |