PT-symmetry breaking phase transitions in an LMG dimer
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arXiv
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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866910919040172032 |
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| author | Kothe, Simon Kirton, Peter |
| author_facet | Kothe, Simon Kirton, Peter |
| contents | The open Lipkin-Meshkov-Glick (LMG) model provides a prototype of a dissipative phase transition which can be analyzed using mean-field theory. By combining the physics of this model with those of a quantum analogue of a parity-time reversal symmetry breaking transition we analyze the steady states phase diagram of a pair of coupled LMG models. The interplay of these two distinct physical effects leads to a complex phase diagram with multiple different types of steady state. We show that the effects predicted from mean-field theory survive in the full quantum model. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_18426 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | PT-symmetry breaking phase transitions in an LMG dimer Kothe, Simon Kirton, Peter Quantum Physics Quantum Gases The open Lipkin-Meshkov-Glick (LMG) model provides a prototype of a dissipative phase transition which can be analyzed using mean-field theory. By combining the physics of this model with those of a quantum analogue of a parity-time reversal symmetry breaking transition we analyze the steady states phase diagram of a pair of coupled LMG models. The interplay of these two distinct physical effects leads to a complex phase diagram with multiple different types of steady state. We show that the effects predicted from mean-field theory survive in the full quantum model. |
| title | PT-symmetry breaking phase transitions in an LMG dimer |
| topic | Quantum Physics Quantum Gases |
| url | https://arxiv.org/abs/2504.18426 |