Wednesday, April 4, 2012

1111.5672 (Brian Pepper et al.)

Optomechanical superpositions via nested interferometry    [PDF]

Brian Pepper, Roohollah Ghobadi, Evan Jeffrey, Christoph Simon, Dirk Bouwmeester
We present a scheme for achieving macroscopic quantum superpositions in optomechanical systems by using single photon postselection and detecting them with nested interferometers. This method relieves many of the challenges associated with previous optical schemes for measuring macroscopic superpositions, and only requires the devices to be in the weak coupling regime. It requires only small improvements on currently achievable device parameters, and allows observation of decoherence on a timescale unconstrained by the system's optical decay time. Prospects for observing novel decoherence mechanisms are discussed.
View original: http://arxiv.org/abs/1111.5672

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