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20 papers · 2 filters
Twist of generalized skyrmions and spin vortices in a polariton superfluid
Stefano Donati, Lorenzo Dominici, Galbadrakh Dagvadorj +7
We study the spin vortices and skyrmions coherently imprinted into an exciton-polariton condensate on a planar semiconductor microcavity. We demonstrate that the presence of a pola…
Connecting few-body inelastic decay to many-body correlations: a weakly coupled impurity in a resonant Fermi gas
Sébastien Laurent, Matthieu Pierce, Marion Delehaye +3
We study three-body recombination in an ultracold Bose-Fermi mixture. We first show theoretically that, for weak inter-species coupling, the loss rate is proportional to Tan's cont…
Haldane phase in the sawtooth lattice: Edge states, entanglement spectrum and the flat band
Benoît Grémaud, G. George Batrouni
Using density matrix renormalization group numerical calculations, we study the phase diagram of the half filled Bose-Hubbard system in the sawtooth lattice with strong frustration…
Pump-and-probe optical transmission phase shift as a quantitative probe of the Bogoliubov dispersion relation in a nonlinear channel waveguide
P. -É. Larré, S. Biasi, F. Ramiro-Manzano +2
We theoretically investigate the dispersion relation of small-amplitude optical waves superimposing upon a beam of polarized monochromatic light propagating along a single-mode cha…
Sustained propagation and control of topological excitations in polariton superfluid
Simon Pigeon, Alberto Bramati
We present a simple method to compensate for losses in a polariton superfluid. Based on a weak support field, it allows for an extended propagation of a resonantly driven polariton…
Strongly correlated Bose gases
Frederic Chevy, Christophe Salomon
The strongly interacting Bose gas is one of the most fundamental paradigms of quantum many-body physics and the subject of many experimental and theoretical investigations. We revi…