title: Optomechanical superpositions via nested interferometry.
abstract: 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 the observation of decoherence on a time scale unconstrained by the system's optical decay time. Prospects for observing novel decoherence mechanisms are discussed.
authors.affiliation: Department of Physics, University of California, Santa Barbara, California 93106, USA.
authors.forename: Brian
authors.initials: B
authors.lastname: Pepper
authors.forename: Roohollah
authors.initials: R
authors.lastname: Ghobadi
authors.forename: Evan
authors.initials: E
authors.lastname: Jeffrey
authors.forename: Christoph
authors.initials: C
authors.lastname: Simon
authors.forename: Dirk
authors.initials: D
authors.lastname: Bouwmeester