Decoherence, Entanglement and Information Protection in Complex Quantum Systems
Dynamics of an open system interacting with theenvironment considered as a thermostate may be formulatedin terms of a master equation with an integral operator allowing for the relaxation process, [Zwanzig 1960]. In some part- ular cases this operator hasashort-lastingkernel that enables one to cons...
Gardado en:
| Outros autores: | , , , |
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| Formato: | Livre numérique |
| Idioma: | Anglais |
| Publicado: |
Dordrecht :
Springer Netherlands
[20..].
Cham : Springer Nature |
| Edición: | 1st ed. 2005. |
| Series: | Nato Science Series II:, Mathematics, Physics and Chemistry
189 |
| Acceso en liña: | Accès sur la plateforme de l'éditeur Accès sur la plateforme Istex Accès Université d'Orléans Accès INSA CVL |
| Nota: |
Archives Springer e-books (Licence nationale) Archives Springer e-books (Licence nationale) |
| Autres localisations: | Voir dans le Sudoc |
| Edition sous un autre format: | • Decoherence, entanglement and information protection in complex quantum systems, [proceedings of the NATO Advanced Research Workshop on Decoherence, entanglement and information protection in complex quantum systems, Les Houches, France, 26-30 April, 2004 ], edited by V.M. Akulin...[et al.], Dordrecht, Springer, 2005, 1 vol. (IX-703 p.), NATO science series, 1-4020-3281-1 • Decoherence, Entanglement and Information Protection in Complex Quantum Systems, Texte imprimé, 9789048102419 • Decoherence, entanglement and information protection in complex quantum systems, [proceedings of the NATO Advanced Research Workshop on Decoherence, entanglement and information protection in complex quantum systems, Les Houches, France, 26-30 April, 2004 ], edited by V.M. Akulin...[et al.], Dordrecht, Springer, 2005, 1 vol. (IX-703 p.), NATO science series, 1-4020-3281-1 • Decoherence, entanglement and information protection in complex quantum systems, [proceedings of the NATO Advanced Research Workshop on Decoherence, entanglement and information protection in complex quantum systems, Les Houches, France, 26-30 April, 2004 ], edited by V.M. Akulin...[et al.], Dordrecht, Springer, 2005, 1 vol. (IX-703 p.), NATO science series, 1-4020-3281-1 |
| Résumé: | Dynamics of an open system interacting with theenvironment considered as a thermostate may be formulatedin terms of a master equation with an integral operator allowing for the relaxation process, [Zwanzig 1960]. In some part- ular cases this operator hasashort-lastingkernel that enables one to consider therelaxation as a Markovian process and to obtainthe master equation inthe Lindblad form, [Lindblad 1976 (a)]. In some situations the memory effects become, however, important and the dynamics of thesystem gets much more involved, [Barnett 2001]. A similar situation arises inthe case where a set of consecutive or continuous measurements is performed. The purpose of this article is to consider a situation where some simplification of the generalform of the master equation with memory isstill possibleand the result isasimpler master equation. In particular, we consider the case of a dynamic system c- pled to a measured ancilla via a nondemolition interaction, [Caves 1980]. This simplifies the consideration essentiallywhereas providing an important special case inwhich the energy of the dynamic part is conserved. We consider a composite quantum system consisting of a dynamic part - teracting with an ancillary part, the latter being subject to repeated projective measurements. The entire quantum system is assumed to evolve unitarily d- ing time ? t between the measurements. As a specific example, we analyze a harmonic oscillator coupledtoatwo-level ancillathat issubject to measu- ments |
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| descrición da copia: | Archives Springer e-books (Licence nationale) Archives Springer e-books (Licence nationale) |
| ISBN: | 9781402032837 |
| Acceso: | Accès en ligne pour les établissements français bénéficiaires des licences nationales Accès soumis à abonnement pour tout autre établissement Conditions particulières de réutilisation pour les bénéficiaires des licences nationales. https://www.licencesnationales.fr/springer-nature-ebooks-contrat-licence-ln-2017 |