Thermal properties of a non-Hermitian system interacting with oscillator
Fuente:
arXiv
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| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866917966422999040 |
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| author | Das, Gargi Mandal, Bhabani Prasad |
| author_facet | Das, Gargi Mandal, Bhabani Prasad |
| contents | In this work, we consider a two level $Pσ_{z}$ pseudo-Hermitian system in contact with a thermal bath to study various thermodynamic properties. The system is realized in terms of infinitely many invariant subspaces. We find explicit solution in each subspace analytically. The quantum system undergoes a $Pσ_{z}$ phase transition in each invariant subspace, when the non-Hermitian coupling exceeds a certain critical value ($μ_c$). We calculate various thermodynamic quantities and observe that these quantities show divergences exactly at the exceptional points (EPs) of the theory. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_17723 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Thermal properties of a non-Hermitian system interacting with oscillator Das, Gargi Mandal, Bhabani Prasad Quantum Physics In this work, we consider a two level $Pσ_{z}$ pseudo-Hermitian system in contact with a thermal bath to study various thermodynamic properties. The system is realized in terms of infinitely many invariant subspaces. We find explicit solution in each subspace analytically. The quantum system undergoes a $Pσ_{z}$ phase transition in each invariant subspace, when the non-Hermitian coupling exceeds a certain critical value ($μ_c$). We calculate various thermodynamic quantities and observe that these quantities show divergences exactly at the exceptional points (EPs) of the theory. |
| title | Thermal properties of a non-Hermitian system interacting with oscillator |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2503.17723 |