Numerical Evaluation of Evolution of Density Matrix and Decoherence Due to Non-Linear Dynamics
We discuss how the non-linearity of systems affects the nature of their coherence. We use a model of two coupled kicked rotors and investigate the evolution of the reduced density matrix ρred obtained by tracing out one of them. We observe that ρred decoheres even throught he coarse-graining of one...
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| Veröffentlicht in: | Progress of theoretical and experimental physics 1996-04, Vol.95 (4), p.703-716 |
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| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | We discuss how the non-linearity of systems affects the nature of their coherence. We use a model of two coupled kicked rotors and investigate the evolution of the reduced density matrix ρred obtained by tracing out one of them. We observe that ρred decoheres even throught he coarse-graining of one degree of freedom when the system has a strong non-linearity. |
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| ISSN: | 0033-068X 2050-3911 1347-4081 |
| DOI: | 10.1143/PTP.95.703 |