Entanglement detection in hybrid optomechanical systems
arXiv:1105.0513 · doi:10.1103/PhysRevA.83.052324
Abstract
We study a device formed by a Bose Einstein condensate (BEC) coupled to the field of a cavity with a moving end-mirror and find a working point such that the mirror-light entanglement is reproduced by the BEC-light quantum correlations. This provides an experimentally viable tool for inferring mirror-light entanglement with only a limited set of assumptions. We prove the existence of tripartite entanglement in the hybrid device, persisting up to temperatures of a few milli-Kelvin, and discuss a scheme to detect it.
6 pages, 7 figures, published version
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- Classical stochastic measurement trajectories: Bosonic atomic gases in an optical cavity and quantum measurement backaction
- Role of thermal noise in tripartite quantum steering
- Statistical ensembles in Hamiltonian formulation of hybrid quantum-classical systems
- Engineering entanglement mechanically
- Dispersive interaction of a Bose-Einstein condensate with the movable mirror of an optomechanical cavity in the presence of the laser phase noise
- Controlling steady-state bipartite entanglements and quadrature squeezing in a membrane-in-the-middle optomechanical system with two Bose-Einstein condensates
- Hybrid quantum-classical models as constrained quantum systems