Wednesday, July 24, 2013

1307.5891 (Minghui Xu et al.)

Quantum Synchronization of Two Ensembles of Atoms    [PDF]

Minghui Xu, D. A. Tieri, E. C. Fine, James K. Thompson, M. J. Holland
We propose a system for observing the correlated phase dynamics of two mesoscopic ensembles of atoms through their collective coupling to an optical cavity. We find a dynamical quantum phase transition induced by pump noise and cavity output-coupling. The spectral properties of the superradiant light emitted from the cavity show that at a critical pump rate the system undergoes a transition from the independent behavior of two disparate oscillators to the phase-locking that is the signature of quantum synchronization.
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