Continuous quantum measurement in spin environments

Dong Xie; An Min Wang

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arXiv · 1409.0191

Continuous quantum measurement in spin environments

Dong Xie·An Min Wang

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Abstract

We derive a formalism of stochastic master equations (SME) which describes the decoherence dynamics of a system in spin environments conditioned on the measurement record. Markovian and non-Markovian nature of environment can be revealed by a spectroscopy method based on weak quantum measurement (weak spectroscopy). On account of that correlated environments can lead to a nonlocal open system which exhibits strong non-Markovian effects although the local dynamics are Markovian, the spectroscopy method can be used to demonstrate that there is correlation between two environments.

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Dong Xie, An Min Wang. 2014-08-31. Continuous quantum measurement in spin environments. https://arxiv.org/abs/1409.0191

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