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首页> 外文期刊>Journal of Physics, A. Mathematical and General: A Europhysics Journal >Reduced dynamics for entangled initial state of the full density operator
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Reduced dynamics for entangled initial state of the full density operator

机译:降低了全密度算子纠缠初始状态的动力学

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摘要

Starting from the Schrodinger equation for a system and a reservoir, we construct a quantum dynamical map that describes reduced dynamics. We work with an arbitrary initial state for the system and reservoir, and thus refrain from performing any factorizations. The map is found to be nonlinear, not completely positive, and not unique. To investigate the physical implications, the Bloch equations are constructed. If the freedom the new map offers us is fully exploited, then the classic inequality gamma(perpendicular to) greater than or equal to gamma(parallel to) /2 for the damping coefficients must be replaced by a weaker condition. [References: 27]
机译:从系统和储层的Schrodinger方程开始,我们构造了描述减少动力学的量子动力学图。我们使用系统和存储库的任意初始状态,因此不要执行任何分解。发现该图是非线性的,不是完全正的,也不是唯一的。为了研究物理含义,构建了Bloch方程。如果新地图提供给我们的自由得到了充分利用,则必须用较弱的条件代替阻尼系数大于或等于γ(平行)/ 2的经典不等式γ(垂直于)。 [参考:27]

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