Quantum correlations between two cavity QED systems coupled by a mechanical resonator

Jhon Edinson Ramírez-Muñoz (), Juan Pablo Restrepo Cuartas and Herbert Vinck-Posada
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Jhon Edinson Ramírez-Muñoz: Universidad Nacional de Colombia – Sede Bogotá, Facultad de Ciencias, Departamento de Física
Juan Pablo Restrepo Cuartas: Universidad Nacional de Colombia – Sede Bogotá, Facultad de Ciencias, Departamento de Física
Herbert Vinck-Posada: Universidad Nacional de Colombia – Sede Bogotá, Facultad de Ciencias, Departamento de Física

The European Physical Journal B: Condensed Matter and Complex Systems, 2018, vol. 91, issue 11, 1-5

Abstract: Abstract Achieving quantum correlations between two distant systems is a desirable feature for quantum networking. In this work, we study a system composed of two quantum emitter-cavity subsystems spatially separated. A mechanical resonator couples to either both quantum emitters or both cavities leading to quantum correlations between both subsystems such as non-local light-matter dressed states and cavity–cavity normal mode splitting. These indirect couplings can be explained by an effective Hamiltonian for large energy detuning between the mechanical resonator and the atoms/cavities. Moreover, it is found that the optimal conditions of the physical parameters maximize the entanglement of phonon-mediated couplings.

Keywords: Mesoscopic; and; Nanoscale; Systems (search for similar items in EconPapers)
Date: 2018
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DOI: 10.1140/epjb/e2018-90438-4

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