Results 51 to 60 of about 33,314 (234)

The Finite Element Method for the time-dependent Gross-Pitaevskii equation with angular momentum rotation [PDF]

open access: yes, 2016
We consider the time-dependent Gross-Pitaevskii equation describing the dynamics of rotating Bose-Einstein condensates and its discretization with the finite element method.
Henning, Patrick, Målqvist, Axel
core   +2 more sources

Finite energy traveling waves for the Gross-Pitaevskii equation in the subsonic regime [PDF]

open access: yesAmerican Journal of Mathematics, 2019
:In this paper we study the existence of finite energy traveling waves for the Gross-Pitaevskii equation. This problem hasdeserved a lot of attention in the literature, but the existence of solutions in the whole subsonic range was a standing open ...
J. Bellazzini, D. Ruiz
semanticscholar   +1 more source

Scattering for the Gross-Pitaevskii equation [PDF]

open access: yesMathematical Research Letters, 2006
We investigate the asymptotic behavior at time infinity of solutions close to a non-zero constant equilibrium for the Gross-Pitaevskii (or Ginzburg-Landau Schroedinger) equation. We prove that, in dimensions larger than 3, small perturbations can be approximated at time infinity by the linearized evolution, and the wave operators are homeomorphic ...
Gustafson, S.   +2 more
openaire   +2 more sources

Continuous quantum measurement of a Bose-Einstein condensate: a stochastic Gross-Pitaevskii equation [PDF]

open access: yes, 2001
We analyze the dynamics of a Bose-Einstein condensate undergoing a continuous dispersive imaging by using a Lindblad operator formalism. Continuous strong measurements drive the condensate out of the coherent state description assumed within the Gross ...
Dalvit, Diego A. R.   +2 more
core   +3 more sources

Probing quasi-integrability of the Gross–Pitaevskii equation in a harmonic-oscillator potential [PDF]

open access: yesJournal of Physics B: Atomic, Molecular and Optical Physics, 2018
Previous simulations of the one-dimensional Gross–Pitaevskii equation (GPE) with repulsive nonlinearity and a harmonic-oscillator trapping potential hint towards the emergence of quasi-integrable dynamics—in the sense of quasi-periodic evolution of a ...
Thomas Bland   +3 more
semanticscholar   +1 more source

Formal analytical solutions for the Gross–Pitaevskii equation [PDF]

open access: yesPhysica D: Nonlinear Phenomena, 2008
8 ...
Trallero-Giner, C.   +3 more
openaire   +2 more sources

Hybrid OpenMP/MPI programs for solving the time-dependent Gross-Pitaevskii equation in a fully anisotropic trap [PDF]

open access: yesComputer Physics Communications, 2016
We present hybrid OpenMP/MPI (Open Multi-Processing/Message Passing Interface) parallelized versions of earlier published C programs (Vudragovic et al.
B. Sataric   +5 more
semanticscholar   +1 more source

Unconditional uniqueness for the energy-critical nonlinear Schrödinger equation on $\mathbb {T}^{4}$

open access: yesForum of Mathematics, Pi, 2022
We consider the $\mathbb {T}^{4}$ cubic nonlinear Schrödinger equation (NLS), which is energy-critical. We study the unconditional uniqueness of solutions to the NLS via the cubic Gross–Pitaevskii hierarchy, an uncommon method for NLS analysis which is ...
Xuwen Chen, Justin Holmer
doaj   +1 more source

Integral equation for inhomogeneous condensed bosons generalizing the Gross-Pitaevskii differential equation

open access: yes, 2004
We give here the derivation of a Gross-Pitaevskii--type equation for inhomogeneous condensed bosons. Instead of the original Gross-Pitaevskii differential equation, we obtain an integral equation that implies less restrictive assumptions than are made in
A. J. Leggett   +9 more
core   +1 more source

Linear "ship waves" generated in stationary flow of a Bose-Einstein condensate past an obstacle [PDF]

open access: yes, 2006
Using stationary solutions of the linearized two-dimensional Gross-Pitaevskii equation, we describe the ``ship wave'' pattern occurring in the supersonic flow of a Bose-Einstein condensate past an obstacle.
A. Gammal   +6 more
core   +4 more sources

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