Results 121 to 130 of about 1,617,592 (202)

Macroscopic quantum tunnelling of a Bose-Einstein condensate in a Cubic-Plus-Quadratic Well

open access: yesAAPPS Bulletin
We study the macroscopic quantum tunnelling of an interacting Bose-Einstein condensate in a cubic-plus-quadratic well that was approximately realized in recent experiment.
Rui-Bin Liu   +2 more
doaj   +1 more source

Stability analysis of 3D cubic-quintic Gross–Pitaevskii equation with elastic and inelastic collisions

open access: yesAIP Advances
In this paper, we study the stability of three-dimensional Bose–Einstein condensates of finite temperatures at which both elastic and inelastic collisions are taken into account.
Rajmohan Sasireka   +3 more
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 ...
Angilella, GGN, Pucci, R, March, NH
core  

Solutions of the Gross-Pitaevskii and time-fractional Gross-Pitaevskii equations for different potentials with Homotopy Perturbation Method

open access: yes, 2012
In this study, after we have briefly introduced the standard Gross-Pitaevskii equation, we have suggested fractional Gross-Pitaevskii equations to investigate the time-dependent ground state dynamics of the Bose-Einstein condensation of weakly ...
AYDINER, EKREM
core  

Deconstructing dynamics of symmetry breaking. [PDF]

open access: yesProc Natl Acad Sci U S A
Suzuki F, Zurek WH.
europepmc   +1 more source

Room-temperature spinor condensate in halide perovskite microcavity. [PDF]

open access: yesSci Adv
Inukai T   +6 more
europepmc   +1 more source

Nonexistence of traveling waves for a nonlocal Gross-Pitaevskii equation

open access: yes, 2009
International audienceWe consider a Gross-Pitaevskii equation with a nonlocal interaction potential. We provide sufficient conditions on the potential such that there exists a range of speeds in which nontrivial traveling waves do not ...
de Laire, André
core  

Standing waves with a critical frequency for the Gross-Pitaevskii equation in trapped dipolar quantum gases

open access: yesElectronic Journal of Differential Equations
This article concerns the singularly of perturbed Gross-Pitaevskii equations in trapped dipolar quantum gases, $$\displaylines{ - \varepsilon^2 \Delta u + V(x)u +{\lambda _1}{| u |^2}u + {\lambda _2}(K * {| u |^2})u= 0 \quad \text{in } \mathbb{R}^3, \cr
Yi He
doaj  

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