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Effective dynamics of quantum subsystems

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  • Nemes, M.C.
  • de Toledo Piza, A.F.R.

Abstract

A formal framework to describe the effective dynamics of subsystems of isolated quantum systems is set up. It provides for a standard decomposition of this effective dynamics in terms of ingredients of two distinct types, namely (a) a mean-field unitary contribution; and (b) a non-unitary contribution which arises from the dynamical evolution of quantum correlations in the entire system, and which are essentially related to changes of the coherence properties of the subsystem. We show quite generally that this effective dynamics is non-hamiltonian and closely related in form to equations of the transport type.

Suggested Citation

  • Nemes, M.C. & de Toledo Piza, A.F.R., 1986. "Effective dynamics of quantum subsystems," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 137(1), pages 367-388.
    • Handle: RePEc:eee:phsmap:v:137:y:1986:i:1:p:367-388
    DOI: 10.1016/0378-4371(86)90083-X
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    1. Hattwick, M.A. & Marcuse, E.K. & Britt, M.R. & Zehmer, R.B. & Currier 2nd., R.W. & Elledge, W.N., 1973. "Skunk rabies: the risk to man--or never trust a skunk," American Journal of Public Health, American Public Health Association, vol. 63(12), pages 1080-1085.
    2. Camelo, Heber & Carre de Pazmino, María Teresa & Pizarro de Pereira, Norma & Semorile, Adriana, 1985. "Encuesta de gastos de ingresos de los hogares: experiencia piloto," Series Históricas 8788, Naciones Unidas Comisión Económica para América Latina y el Caribe (CEPAL).
    3. Ferreira, Carlos Ernesto, 1985. "A questão da dívida externa," RAE - Revista de Administração de Empresas, FGV-EAESP Escola de Administração de Empresas de São Paulo (Brazil), vol. 25(4), October.
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    Cited by:

    1. Cruz Barrios, S. & De Toledo Piza, A.F.R., 1989. "Functional mean field expansion for the many-body initial condition problem," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 159(3), pages 440-458.
    2. Camargo, F. & Trindade dos Santos, M. & Nemes, M.C., 1997. "Beyond the classical limit: Correlation effects in the chaotic masermodel," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 246(1), pages 132-144.

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