Squeezing and Entanglement of Density Oscillations in a Bose-Einstein Condensate.

Phys Rev Lett

Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, DK-8000 Aarhus C, Denmark.

Published: August 2015

The dispersive interaction of atoms and a far-detuned light field allows nondestructive imaging of the density oscillations in Bose-Einstein condensates. Starting from a ground state condensate, we investigate how the measurement backaction leads to squeezing and entanglement of the quantized density oscillations. We show that properly timed, stroboscopic imaging and feedback can be used to selectively address specific eigenmodes and avoid excitation of nontargeted modes of the system.

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Source
http://dx.doi.org/10.1103/PhysRevLett.115.060401DOI Listing

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