Gravitational wave analogues in spin nematics and cold atoms
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arXiv
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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2023
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| _version_ | 1866917721227132928 |
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| author | Chojnacki, Leilee Pohle, Rico Yan, Han Akagi, Yutaka Shannon, Nic |
| author_facet | Chojnacki, Leilee Pohle, Rico Yan, Han Akagi, Yutaka Shannon, Nic |
| contents | Many large-scale phenomena in our Universe, such as gravitational waves, are challenging to reproduce in laboratory settings. However, parallels with condensed matter systems can provide alternative routes for experimental accessibility. Here we show how spin nematic phases provide a low-energy avenue for accessing the physics of linearized gravity, and in particular that their Goldstone modes are relativistically-dispersing massless spin-2 excitations, analogous to gravitational waves. We show at the level of the action that the low-energy effective field theory describing a spin nematic is in correspondence with that of linearized gravity. We then explicitly identify a microscopic model of a spin-1 magnet whose excitations in the low energy limit are relativistically dispersing, massless spin-2 Bosons which are in one-to-one correspondence with gravitational waves and, supported by simulation, outline a procedure for directly observing these analogue waves in a cold gas of $^{23}$Na atoms. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2310_10078 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Gravitational wave analogues in spin nematics and cold atoms Chojnacki, Leilee Pohle, Rico Yan, Han Akagi, Yutaka Shannon, Nic Strongly Correlated Electrons Other Condensed Matter Quantum Gases Many large-scale phenomena in our Universe, such as gravitational waves, are challenging to reproduce in laboratory settings. However, parallels with condensed matter systems can provide alternative routes for experimental accessibility. Here we show how spin nematic phases provide a low-energy avenue for accessing the physics of linearized gravity, and in particular that their Goldstone modes are relativistically-dispersing massless spin-2 excitations, analogous to gravitational waves. We show at the level of the action that the low-energy effective field theory describing a spin nematic is in correspondence with that of linearized gravity. We then explicitly identify a microscopic model of a spin-1 magnet whose excitations in the low energy limit are relativistically dispersing, massless spin-2 Bosons which are in one-to-one correspondence with gravitational waves and, supported by simulation, outline a procedure for directly observing these analogue waves in a cold gas of $^{23}$Na atoms. |
| title | Gravitational wave analogues in spin nematics and cold atoms |
| topic | Strongly Correlated Electrons Other Condensed Matter Quantum Gases |
| url | https://arxiv.org/abs/2310.10078 |