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5 papers · 2 filters
Interaction quantum quenches in the one-dimensional Fermi-Hubbard model with spin imbalance
L. Riegger, G. Orso, F. Heidrich-Meisner
Using the time-dependent density matrix renormalization group method and exact diagonalization, we study the non-equilibrium dynamics of the one-dimensional Fermi-Hubbard model fol…
Instability of the superfluid flow as black-hole lasing effect
S. Finazzi, F. Piazza, M. Abad +2
We show that the instability leading to the decay of the one-dimensional superfluid flow through a penetrable barrier are due to the black-hole lasing effect. This dynamical instab…
Diagrammatic Monte Carlo study of the acoustic and the BEC polaron
Jonas Vlietinck, Wim Casteels, Kris Van Houcke +3
We consider two large polaron systems that are described by a Fröhlich type of Hamiltonian, namely the Bose-Einstein condensate (BEC) polaron in the continuum and the acoustic pola…
Interaction-Shaped Vortex-Antivortex Lattices in Polariton Fluids
Romain Hivet, Emiliano Cancellieri, Thomas Boulier +7
Topological defects such as quantized vortices are one of the most striking manifestations of the superfluid nature of Bose-Einstein condensates and typical examples of quantum mec…
Mobility edge for cold atoms in laser speckle potentials
Dominique Delande, Giuliano Orso
Using the transfer matrix method, we numerically compute the precise position of the mobility edge of atoms exposed to a laser speckle potential, and study its dependence vs. the d…