Qubit thermalization by random pulses: Asymptotic state factorization
Fuente:
arXiv
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866916922532036608 |
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| author | Gzyl, Henryk |
| author_facet | Gzyl, Henryk |
| contents | Here we consider an analytically tractable model of a two level quantum system subject to random shocks and prove that it decays asymptotically to a trivial state, that is, to a state in which the two levels have equal probability of occupation. In a two qubit system, if the shocks affect each qubit independently, the equilibrium density matrix becomes a simple product of the one qubit equilibrium density matrices regardless of the nature of the initial state. This has potential applications to entangles qubits in quantum computers. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_20096 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Qubit thermalization by random pulses: Asymptotic state factorization Gzyl, Henryk Quantum Physics 81P40, 81P20, 81P16, 60J27 Here we consider an analytically tractable model of a two level quantum system subject to random shocks and prove that it decays asymptotically to a trivial state, that is, to a state in which the two levels have equal probability of occupation. In a two qubit system, if the shocks affect each qubit independently, the equilibrium density matrix becomes a simple product of the one qubit equilibrium density matrices regardless of the nature of the initial state. This has potential applications to entangles qubits in quantum computers. |
| title | Qubit thermalization by random pulses: Asymptotic state factorization |
| topic | Quantum Physics 81P40, 81P20, 81P16, 60J27 |
| url | https://arxiv.org/abs/2502.20096 |