Phase Transitions in Quantum Many-Body Scars
Fuente:
arXiv
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| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866916429430784000 |
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| author | Larsen, Peter Græns Nielsen, Anne E. B. |
| author_facet | Larsen, Peter Græns Nielsen, Anne E. B. |
| contents | We propose a type of phase transition in quantum many-body systems, which occurs in highly excited quantum many-body scar states, while most of the spectrum is largely unaffected. Such scar state phase transitions can be realized by embedding a matrix product state, known to undergo a phase transition, as a scar state into the thermal spectrum of a parent Hamiltonian. We find numerically that the mechanism for the scar state phase transition involves the formation or presence of low-entropy states at energies similar to the scar state in the vicinity of the phase transition point. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_20113 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Phase Transitions in Quantum Many-Body Scars Larsen, Peter Græns Nielsen, Anne E. B. Quantum Physics Strongly Correlated Electrons We propose a type of phase transition in quantum many-body systems, which occurs in highly excited quantum many-body scar states, while most of the spectrum is largely unaffected. Such scar state phase transitions can be realized by embedding a matrix product state, known to undergo a phase transition, as a scar state into the thermal spectrum of a parent Hamiltonian. We find numerically that the mechanism for the scar state phase transition involves the formation or presence of low-entropy states at energies similar to the scar state in the vicinity of the phase transition point. |
| title | Phase Transitions in Quantum Many-Body Scars |
| topic | Quantum Physics Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2405.20113 |