Entangling levitated nanoparticles by coherent scattering
arXiv:2001.05769 · doi:10.1103/PhysRevA.101.011804
Abstract
We show how entanglement between two optically levitated nanoparticles can be generated and detected by coherent scattering of tweezer photons into a single cavity mode. Triggered by the detection of a Stokes photon, the tweezer detuning is switched from the blue to the red; entanglement is then verified by the conditioned anti-Stokes photon flux, which oscillates with the mechanical beat frequency. The proposed setup is realizable with near-future technology and opens the door to the first experimental observation of non-classical center-of-mass correlations between two or more levitated nanoscale objects.
5 pages, 2 figures; to appear in PRA Rapid Comm
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