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arXiv · 0708.1361

Stationary photon-atom entanglement and flow equation

Yuichi Itto·Sumiyoshi Abe
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Abstract

Stationary photon-atom entanglement is discussed by applying the method of flow equation to the Jaynes-Cummings model. A nonlocal continuous unitary transformation is explicitly constructed and the associated positive operator-valued measures for the photons and atom are obtained. Then, flow of the entanglement entropy is analyzed. A comment is also made on implementing the unitary operation in the method of flow equation. This method may offer a new strategy for quantum-state engineering.

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Yuichi Itto, Sumiyoshi Abe. 2007-08-10. Stationary photon-atom entanglement and flow equation. https://doi.org/10.1016/j.physa.2007.10.005

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