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The quantum-state diffusion model applied to open systems

Journal of Physics A Mathematical and General · 1992 · Vol. 25(21) · pp. 5677–5691

Nicolas Gisin✉(University of Geneva)I C Percival(University of Geneva)

Abstract

AbstrafL A model of a quantum system interacting with its environment is proposed in which the system is represented by a State vector that satisfies a mchastic differential equation, derived from a density operator equation ruch as the Bloch equation, and consistent with it. The advantages of the numerical solution of these equations over the direct numerical solution of the density operator equations are d-bed.

Quantum Mechanics and Applications Quantum Information and Cryptography Spectroscopy and Quantum Chemical StudiesStochastic differential equationStatistical physicsOperator (biology)State vectorDifferential equationNonlinear systemQuantumMathematicsQuantum processMaster equation

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Decoherence, einselection, and the quantum origins of the classical