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Non-equilibrium Berezinskii-Kosterlitz-Thouless Transition in a Driven Open Quantum System
G. Dagvadorj, J. M. Fellows, S. Matyjaskiewicz +3
The Berezinskii-Kosterlitz-Thouless mechanism, in which a phase transition is mediated by the proliferation of topological defects, governs the critical behaviour of a wide range o…
Propagation of a quantum fluid of light in a cavityless nonlinear optical medium: General theory and response to quantum quenches
P. -É. Larré, I. Carusotto
Making use of a generalized quantum theory of paraxial light propagation where the radiation-axis and the temporal coordinates play exchanged roles, we discuss the potential of bul…
Artificial Magnetic Fields in Momentum Space in Spin-Orbit Coupled Systems
Hannah M. Price, Tomoki Ozawa, Nigel R. Cooper +1
The Berry curvature is a geometrical property of an energy band which can act as a momentum space magnetic field in the effective Hamiltonian of a wide range of systems. We apply t…
Photon transport in a dissipative chain of nonlinear cavities
Alberto Biella, Leonardo Mazza, Iacopo Carusotto +2
We analyze a chain of coupled nonlinear optical cavities driven by a coherent source of light localized at one end and subject to uniform dissipation. We characterize photon transp…
Momentum-space Harper-Hofstadter model
Tomoki Ozawa, Hannah M. Price, Iacopo Carusotto
We show how the weakly trapped Harper-Hofstadter model can be mapped onto a Harper-Hofstadter model in momentum space. In this momentum-space model, the band dispersion plays the r…
Inter-mode reactive coupling induced by waveguide-resonator interaction
Mher Ghulinyan, Fernando Ramiro Manzano, Nikola Prtljaga +4
We report on a joint theoretical and experimental study of an integrated photonic device consisting of a single mode waveguide vertically coupled to a disk-shaped microresonator. S…