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Entanglement within the Quantum Trajectory Description of Open Quantum Systems

Hyunchul Nha·H. J. Carmichael
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Abstract

The degree of entanglement in an open quantum system varies according to how information in the environment is read. A measure of this contextual entanglement is introduced based on quantum trajectory unravelings of the open system dynamics. It is used to characterize the entanglement in a driven quantum system of dimension $2\times\infty$ where the entanglement is induced by the environmental interaction. A detailed mechanism for the environment-induced entanglement is given.

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Hyunchul Nha, H. J. Carmichael. 2004-09-21. Entanglement within the Quantum Trajectory Description of Open Quantum Systems. https://doi.org/10.1103/physrevlett.93.120408

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