dorsal/arxiv
View SchemaMaximally Robust Unravelings of Quantum Master Equations
| Authors | H. M. Wiseman, J. A. Vaccaro |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9709014 |
| URL | https://arxiv.org/abs/quant-ph/9709014 |
| DOI | 10.1016/S0375-9601(98)00774-9 |
| Journal | Phys.Lett. A250 (1998) 241-248 |
Abstract
The stationary solution \rho of a quantum master equation can be represented as an ensemble of pure states in a continuous infinity of ways. An ensemble which is physically realizable through monitoring the system's environment we call an `unraveling'. The survival probability S(t) of an unraveling is the average probability for each of its elements to be unchanged a time t after cessation of monitoring. The maximally robust unraveling is the one for which S(t) remains greater than the largest eigenvalue of \rho for the longest time. The optical parametric oscillator is a soluble example.
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"abstract": "The stationary solution \\rho of a quantum master equation can be represented\nas an ensemble of pure states in a continuous infinity of ways. An ensemble\nwhich is physically realizable through monitoring the system\u0027s environment we\ncall an `unraveling\u0027. The survival probability S(t) of an unraveling is the\naverage probability for each of its elements to be unchanged a time t after\ncessation of monitoring. The maximally robust unraveling is the one for which\nS(t) remains greater than the largest eigenvalue of \\rho for the longest time.\nThe optical parametric oscillator is a soluble example.",
"arxiv_id": "quant-ph/9709014",
"authors": [
"H. M. Wiseman",
"J. A. Vaccaro"
],
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"quant-ph"
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"doi": "10.1016/S0375-9601(98)00774-9",
"journal_ref": "Phys.Lett. A250 (1998) 241-248",
"title": "Maximally Robust Unravelings of Quantum Master Equations",
"url": "https://arxiv.org/abs/quant-ph/9709014"
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