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arXiv · 1406.1064

Postselection induced entanglement swapping from a vacuum--excitation entangled state to separate quantum systems

Antonio Di Lorenzo
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Abstract

We show that a single particle in a superposition of different paths can entangle two objects located on each path. The entanglement has its maximum visibility for intermediate coupling strengths. In particular, when the two quantum systems with which the particle interacts are detectors that measure its presence and its polarization, the so-called quantum Cheshire cat is realized.

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Antonio Di Lorenzo. 2014-06-04. Postselection induced entanglement swapping from a vacuum--excitation entangled state to separate quantum systems. https://doi.org/10.1103/physreva.90.022121

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