Entangling levitated nanoparticles by coherent scattering
Henning Rudolph, Klaus Hornberger, Benjamin A. Stickler
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 experimental observation of nonclassical center-of-mass correlations between two or more levitated nanoscale objects.
Topics & Concepts
PhysicsQuantum entanglementPhotonScatteringOptical tweezersNanoscopic scaleBeat (acoustics)Photon entanglementNanoparticleOpticsQuantum mechanicsQuantumMechanical and Optical ResonatorsPhotonic and Optical DevicesQuantum Information and Cryptography