Results 31 to 40 of about 2,411 (56)
Dynamical localization of matter wave solitons in managed barrier potentials
, 2006 The bright matter wave soliton propagation through a barrier with a rapidly oscillating position is investigated. The averaged over rapid oscillations Gross-Pitaevskii (GP) equation is derived.
F. Kh. Abdullaev +4 more
core +1 more source
First and second sound of a unitary Fermi gas in highly oblate harmonic traps
New Journal of Physics, 2014 We theoretically investigate first and second sound modes of a unitary Fermi gas trapped in a highly oblate harmonic trap at finite temperatures. Following the idea by Stringari and co-workers (2010 Phys. Rev. Lett.
Hui Hu +3 more
doaj +1 more source
Analytical solution of a double-well Bose-Einstein Condensate
, 2014 We introduce a microscopic computation which shows that the Hamiltonian of a Bose-Einstein Condensate can be analytically solved in the two-mode approximation, in particular, in the case of an asymmetric double-well condensate in the dilute regime.
Barberis-Blostein, Pablo +2 more
core +1 more source
Mean-field approaches to the Bose-Hubbard model with three-body local interaction [PDF]
, 2014 The zero temperature properties of the generalized Bose-Hubbard model including three-body interactions are studied on a mean-field level. We obtain analytical results using the so-called perturbative mean-field method and more detailed numerical results
Chhajlany, Ravindra W. +1 more
core +2 more sources
Temporal non-equilibrium dynamics of a Bose–Josephson junction in presence of incoherent excitations
New Journal of Physics, 2015 The time-dependent non-equilibrium dynamics of a Bose–Einstein condensate (BEC) typically generates incoherent excitations out of the condensate due to the finite frequencies present in the time evolution.
Mauricio Trujillo-Martinez +2 more
doaj +1 more source
Spontaneous Circulation in Ground-State Spinor Dipolar Bose-Einstein Condensates
, 2006 We report on a study of the spin-1 ferromagnetic Bose-Einstein condensate with magnetic dipole-dipole interactions. By solving the non-local Gross-Pitaevskii equations for this system, we find three ground-state phases.
A. Hubert +4 more
core +1 more source
Three-dimensional hybrid vortex solitons
New Journal of Physics, 2014 We show, by means of numerical and analytical methods, that media with a repulsive nonlinearity which grows from the center to the periphery support a remarkable variety of previously unknown complex stationary and dynamical three-dimensional (3D ...
Rodislav Driben +4 more
doaj +1 more source
Laser assisted tunneling in a Tonks–Girardeau gas
New Journal of Physics, 2016 We investigate the applicability of laser assisted tunneling in a strongly interacting one-dimensional (1D) Bose gas (the Tonks–Girardeau gas) in optical lattices.
Karlo Lelas +5 more
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Resonant invisibility with finite range interacting fermions
, 2011 We study the eigenstates of two opposite spin fermions on a one-dimensional lattice with finite range interaction. The eigenstates are projected onto the set of Fock eigenstates of the noninteracting case. We find antiresonances for symmetric eigenstates,
Dalfogo +20 more
core +1 more source
Universal dynamics on the way to thermalization
New Journal of Physics, 2014 It is demonstrated how a many-body system far from thermal equilibrium can exhibit universal dynamics in passing a nonthermal fixed point. As an example, the process of Bose–Einstein (BE) condensation of a dilute cold gas is considered.
Boris Nowak, Jan Schole, Thomas Gasenzer
doaj +1 more source