title: Universality of quantum critical dynamics in a planar optical parametric oscillator.
abstract: We analyze the critical quantum fluctuations in a coherently driven planar optical parametric oscillator. We show that the presence of transverse modes combined with quantum fluctuations changes the behavior of the "quantum image" critical point. This zero-temperature nonequilibrium quantum system has the same universality class as a finite-temperature magnetic Lifshitz transition.
authors.affiliation: ARC Centre of Excellence for Quantum-Atom Optics, University of Queensland, Brisbane 4072, Queensland, Australia.
authors.forename: Peter D
authors.initials: PD
authors.lastname: Drummond
authors.forename: Kaled
authors.initials: K
authors.lastname: Dechoum