Entanglement swapping and testing quantum steering into the past via collective decay
arXiv:1310.7706 · doi:10.1103/PhysRevA.88.052320
Abstract
We propose a scheme to realize entanglement swapping via superradiance, entangling two distant cavities without a direct interaction. The successful Bell-state-measurement outcomes are performed naturally by the electromagnetic reservoir, and we show how, using a quantum trajectory method, the non-local properties of the state obtained after the swapping procedure can be verified by the steering inequality. Furthermore, we discuss how the unsuccessful measurement outcomes can be used in an experiment of delayed-choice entanglement swapping. An extension of testing the quantum steering inequality with the observers at three different times is also considered
6 pages, 5 figures; accepted in Phys. Rev. A (2013)
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- Space-time dual quantum Zeno effect: Interferometric engineering of open quantum system dynamics
- Entanglement witness and entropy uncertainty of open Quantum systems under Zeno effect