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arXiv · 0704.2035

Vacuum as a less hostile environment to entanglement

Petr Marek·Jinhyoung Lee·M. S. Kim
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Abstract

We derive sufficient conditions for infinite-dimensional systems whose entanglement is not completely lost in a finite time during its decoherence by a passive interaction with local vacuum environments. The sufficient conditions allow us to clarify a class of bipartite entangled states which preserve their entanglement or, in other words, are tolerant against decoherence in a vacuum. We also discuss such a class for entangled qubits.

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Petr Marek, Jinhyoung Lee, M. S. Kim. 2008-03-05. Vacuum as a less hostile environment to entanglement. https://doi.org/10.1103/physreva.77.032302

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