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Energy and wave-action flows underlying Rayleigh-Jeans thermalization of optical waves propagating in a multimode fiber
K. Baudin, A. Fusaro, J. Garnier +6
The wave turbulence theory predicts that a conservative system of nonlinear waves can exhibit a process of condensation, which originates in the singularity of the Rayleigh-Jeans e…
Spatial and Spectral Mode-Selection Effects in Topological Lasers with Frequency-Dependent Gain
Matteo Seclì, Tomoki Ozawa, Massimo Capone +1
We develop a semiclassical theory of laser oscillation into a chiral edge state of a topological photonic system endowed with a frequency-dependent gain. As an archetypal model of…
Non-equilibrium Berezinskii-Kosterlitz-Thouless transition in driven-dissipative condensates
P. Comaron, I. Carusotto, M. H. Szymanska +1
We study the 2d phase transition of a driven-dissipative system of exciton-polaritons under non-resonant pumping. Stochastic calculations are used to investigate the Berezinskii-Ko…
Understanding superradiant phenomena with synthetic vector potentials in atomic Bose-Einstein condensates
Luca Giacomelli, Iacopo Carusotto
We theoretically investigate superradiance effects in quantum field theories in curved space-times by proposing an analogue model based on Bose--Einstein condensates subject to a s…
Long time universality of black-hole lasers
J. R. M. de Nova, P. F. Palacios, I. Carusotto +1
For flowing quantum gases, it has been found that at long times an initial black-hole laser (BHL) configuration exhibits only two possible states: the ground state or a periodic se…
On the role of interactions in trans-sonically flowing atomic condensates
Manuele Tettamanti, Iacopo Carusotto, Alberto Parola
We provide a joint numerical-analytical study of the physics of a flowing atomic Bose-Einstein condensate in the combined presence of an external trap and a step potential which ac…