Conditional Density Matrix: Systems and Subsystems in Quantum Mechanics

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dc.creatorBelokurov, V. V.
dc.creatorKhrustalev, O. A.
dc.creatorSadovnichy, V. A.
dc.creatorTimofeevskaya, O. D.
dc.date2002-10-22
dc.date.accessioned2026-07-07T06:05:17Z
dc.date.available2026-07-07T06:05:17Z
dc.descriptionA new quantum mechanical notion -- Conditional Density Matrix -- is discussed and is applied to describe some physical processes. This notion is a natural generalization of von Neumann density matrix for such processes as divisions of quantum systems into subsystems and reunifications of subsystems into new joint systems. Conditional Density Matrix assigns a quantum state to a subsystem of a composite system under condition that another part of the composite system is in some pure state.
dc.description14 pages, LaTEX
dc.identifierhttps://arxiv.org/abs/quant-ph/0210149
dc.identifierhttp://arxiv.org/abs/quant-ph/0210149
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/90585
dc.subjectQuantum Physics
dc.titleConditional Density Matrix: Systems and Subsystems in Quantum Mechanics
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