dorsal/arxiv
View SchemaStochastic unraveling of time-local quantum master equations beyond the Lindblad class
| Authors | Ulrich Kleinekathoefer, Ivan Kondov, Michael Schreiber |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0208084 |
| URL | https://arxiv.org/abs/quant-ph/0208084 |
| DOI | 10.1103/PhysRevE.66.037701 |
| Journal | Phys. Rev. E 66, 037701 (2002) |
Abstract
A new method for stochastic unraveling of general time-local quantum master equations (QME) which involve the reduced density operator at time t only is proposed. The present kind of jump algorithm enables a numerically efficient treatment of QMEs which are not of Lindblad form. So it opens new large fields of application for stochastic methods. The unraveling can be achieved by allowing for trajectories with negative weight. We present results for the quantum Brownian motion and the Redfield QMEs as test examples. The algorithm can also unravel non-Markovian QMEs when they are in a time-local form like in the time-convolutionless formalism.
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"abstract": "A new method for stochastic unraveling of general time-local quantum master\nequations (QME) which involve the reduced density operator at time t only is\nproposed. The present kind of jump algorithm enables a numerically efficient\ntreatment of QMEs which are not of Lindblad form. So it opens new large fields\nof application for stochastic methods. The unraveling can be achieved by\nallowing for trajectories with negative weight. We present results for the\nquantum Brownian motion and the Redfield QMEs as test examples. The algorithm\ncan also unravel non-Markovian QMEs when they are in a time-local form like in\nthe time-convolutionless formalism.",
"arxiv_id": "quant-ph/0208084",
"authors": [
"Ulrich Kleinekathoefer",
"Ivan Kondov",
"Michael Schreiber"
],
"categories": [
"quant-ph",
"physics.comp-ph"
],
"doi": "10.1103/PhysRevE.66.037701",
"journal_ref": "Phys. Rev. E 66, 037701 (2002)",
"title": "Stochastic unraveling of time-local quantum master equations beyond the Lindblad class",
"url": "https://arxiv.org/abs/quant-ph/0208084"
},
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