Thermodynamic Limit in the Two-qubit Quantum Rabi Model with Spin-Spin Coupling
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arXiv
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| Hauptverfasser: | , , , , , , |
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| Format: | Preprint |
| Veröffentlicht: |
2023
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| _version_ | 1866912221094739968 |
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| author | Grimaudo, R. Falci, G. Messina, A. Paladino, E. Sergi, A. Solano, E. Valenti, D. |
| author_facet | Grimaudo, R. Falci, G. Messina, A. Paladino, E. Sergi, A. Solano, E. Valenti, D. |
| contents | The occurrence of a second-order superradiant quantum phase transition is brought to light in a quantum system consisting of two interacting qubits coupled to the same quantized field mode. We introduce an appropriate thermodynamic-like limit for the integrable two-qubit quantum Rabi model with spin-spin interaction. Namely, it is determined by the infinite ratios of the spin-spin and the spin-mode couplings to the mode frequency, regardless of the spin-to-mode frequency ratios. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2310_19595 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Thermodynamic Limit in the Two-qubit Quantum Rabi Model with Spin-Spin Coupling Grimaudo, R. Falci, G. Messina, A. Paladino, E. Sergi, A. Solano, E. Valenti, D. Quantum Physics The occurrence of a second-order superradiant quantum phase transition is brought to light in a quantum system consisting of two interacting qubits coupled to the same quantized field mode. We introduce an appropriate thermodynamic-like limit for the integrable two-qubit quantum Rabi model with spin-spin interaction. Namely, it is determined by the infinite ratios of the spin-spin and the spin-mode couplings to the mode frequency, regardless of the spin-to-mode frequency ratios. |
| title | Thermodynamic Limit in the Two-qubit Quantum Rabi Model with Spin-Spin Coupling |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2310.19595 |