title: Measurement-Based Linear Optics.
abstract: A major challenge in optical quantum processing is implementing large, stable interferometers. We offer a novel approach: virtual, measurement-based interferometers that are programed on the fly solely by the choice of homodyne measurement angles. The effects of finite squeezing are captured as uniform amplitude damping. We compare our proposal to existing (physical) interferometers and consider its performance for BosonSampling, which could demonstrate postclassical computational power in the near future. We prove its efficiency in time and squeezing (energy) in this setting.
authors.affiliation: School of Physics, The University of Sydney, Sydney, New South Wales 2006, Australia.|School of Science, RMIT University, Melbourne, Victoria 3001, Australia.
authors.forename: Rafael N
authors.initials: RN
authors.lastname: Alexander
authors.affiliation: School of Physics, The University of Sydney, Sydney, New South Wales 2006, Australia.
authors.forename: Natasha C
authors.initials: NC
authors.lastname: Gabay
authors.affiliation: Centre for Quantum Software & Information (QSI), Faculty of Engineering & Information Technology, University of Technology Sydney, NSW 2007, Australia.
authors.forename: Peter P
authors.initials: PP
authors.lastname: Rohde
authors.affiliation: School of Physics, The University of Sydney, Sydney, New South Wales 2006, Australia.|School of Science, RMIT University, Melbourne, Victoria 3001, Australia.
authors.forename: Nicolas C
authors.initials: NC
authors.lastname: Menicucci