Computational modeling demonstrates efficiency of stochastic state-vector equations over density operators in open quantum systems, suggesting streamlined quantum simulation methods.
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.
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Gisin et al. (1992) studied this question.
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