Non-Markovian quantum trajectories, instruments and time-continuous measurements
arXiv:1109.1338 · doi:10.1088/1751-8113/45/5/055305
Abstract
The linear and the nonlinear non-Markovian quantum state diffusion equation (NMQSD) are well known tools for the description of certain non-Markovian open quantum systems. In this work, we systematically investigate whether the normalized linear NMQSD or the nonlinear NMQSD solutions can be generated by means of a time-continuous measurement. By considering any conceivable measurement scheme in the framework of instruments, we derive a necessary criterion for a measurement interpretation of both equations. Concrete examples show that the normalized linear NMQSD solutions are realizable only in the Markovian limit in general. The application of the presented criterion to the nonlinear NMQSD remains an open issue.
19 pages
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Cited by in corpus (9)
- Non-Markovian Quantum Dynamics in Strongly Coupled Multimode Cavities Conditioned on Continuous Measurement
- Continuous Measurement of a Non-Markovian Open Quantum System
- Parametrization and optimization of Gaussian non-Markovian unravelings for open quantum dynamics
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- Continuous quantum measurement for general Gaussian unravelings can exist
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