Results 41 to 50 of about 1,617,592 (202)

Bright soliton behaviour of the integer and fractional nonlinear Gross-Pitaevskii equation having the generalized cubic-quintic nonlinearities via the polytropic approximation

open access: yesJournal of Taibah University for Science
Based on the generalized model of the cubic-quintic Gross-Pitaevskii equation with polytropic approximation, we novelly utilize an F-expansion method to identify bright soliton dynamics of systems modelled by the cubic-quintic Gross-Pitaevskii with ...
Qingru Wang   +3 more
doaj   +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

Existence and properties of travelling waves for the Gross-Pitaevskii equation [PDF]

open access: yes, 2008
This paper presents recent results concerning the existence and qualitative properties of travelling wave solutions to the Gross-Pitaevskii equation posed on the whole space R^N.
Philippe Gravejat   +5 more
core   +1 more source

Standing waves of the Anderson-Gross-Pitaevskii equation

open access: yes
In this paper, we study standing waves for the Anderson-Gross-Pitaevskii equation in dimension 1 and 2. The Anderson-Gross-Pitaevskii equation is a nonlinear Schrödinger equation with a confining potential and a multiplicative spatial white noise ...
Mackowiak, Samaël
core   +4 more sources

Remarks on the Blow-Up Solutions for the Critical Gross-Pitaevskii Equation

open access: yesAbstract and Applied Analysis, 2013
This paper is concerned with the blow-up solutions of the critical Gross-Pitaevskii equation, which models the Bose-Einstein condensate. The existence and qualitative properties of the minimal blow-up solutions are obtained.
Xiaoguang Li, Chong Lai
doaj   +1 more source

Comparison of finite‐difference schemes for the Gross‐Pitaevskii equation

open access: yesMathematical Modelling and Analysis, 2009
A conservative finite‐difference scheme for numerical solution of the Gross‐Pitaevskii equation is proposed. The scheme preserves three invariants of the problem: the L 2 norm of the solution, the impulse functional, and the energy functional.
Vyacheslav A. Trofimov, Nikolai Peskov
doaj   +1 more source

Polaron Dynamics in a Quasi-Two-Dimensional Bose–Einstein Condensate

open access: yesUniverse, 2023
The concept of polaron quasiparticles was first introduced in the pioneering papers by Landau and Feynman in the 1930s and 1940s. It describes the phenomenon of an external particle producing a bound state in an embedded medium.
Shukhrat N. Mardonov   +3 more
doaj   +1 more source

Toward Coherent Polaritonic Devices Operating at Room Temperature

open access: yesNanophotonics, Volume 15, Issue 17, 11 September 2026.
Polariton condensate formation and long‐range coherent transport is demonstrated using molecular exciton polaritons at room temperature (left). Waveguides and related photonic structures, such as Y‐splitters and interferometers, are realized via a focused ion beam etching of the planar microcavity. Coherent propagation of the condensate is demonstrated
Addhyaya Sharma   +8 more
wiley   +1 more source

Domain Walls in the Coupled Gross–Pitaevskii Equations [PDF]

open access: yesArchive for Rational Mechanics and Analysis, 2014
A thorough study of domain wall solutions in coupled Gross-Pitaevskii equations on the real line is carried out including existence of these solutions; their spectral and nonlinear stability; their persistence and stability under a small localized potential. The proof of existence is variational and is presented in a general framework: we show that the
Alama, Stan   +3 more
openaire   +2 more sources

Spatiotemporal vector vortex and diploe solitons of a nonautonomous partially nonlocal coupled Gross–Pitaevskii equation with a linear potential

open access: yesResults in Physics, 2021
A 3D nonautonomous partially nonlocal coupled Gross–Pitaevskii equation is paid attention under a linear potential. The similarity reduction from a 3D nonautonomous coupled equation into an autonomous one is implemented.
Jing Yang   +4 more
doaj   +1 more source

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