Qubit thermalization by random pulses: Asymptotic state factorization
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...
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| Format | Journal Article |
| Language | English |
| Published |
28.08.2025
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| Subjects | |
| Online Access | Get full text |
| DOI | 10.48550/arxiv.2502.20096 |
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| Summary: | 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. |
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| DOI: | 10.48550/arxiv.2502.20096 |