Article,

Robust Photon Entanglement via Quantum Interference in Optomechanical Interfaces

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Physical Review Letters, 110 (23): 233602+ (Jun 3, 2013)
DOI: 10.1103/physrevlett.110.233602

Abstract

Entanglement is a key element in quantum information processing. Here, we present schemes to generate robust photon entanglement via optomechanical quantum interfaces in the strong coupling regime. The schemes explore the excitation of the Bogoliubov dark mode and the destructive quantum interference between the bright modes of the interface, similar to electromagnetically induced transparency, to eliminate leading-order effects of the mechanical noise. Both continuous-variable and discrete-state entanglements that are robust against the mechanical noise can be achieved. The schemes can be used to generate entanglement in hybrid quantum systems between, e.g., microwave photon and optical photon.

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