Results 31 to 40 of about 1,617,592 (202)

Comparison of Splitting Methods for Deterministic/Stochastic Gross–Pitaevskii Equation

open access: yesMathematical and Computational Applications, 2019
In this paper, we discuss the different splitting approaches to numerically solvethe Gross–Pitaevskii equation (GPE). The models are motivated from spinor Bose–Einsteincondensate (BEC).
Jürgen Geiser, Amirbahador Nasari
doaj   +1 more source

Optimal Bilinear Control of Gross--Pitaevskii Equations [PDF]

open access: yesSIAM Journal on Control and Optimization, 2013
A mathematical framework for optimal bilinear control of nonlinear Schrödinger equations of Gross-Pitaevskii type arising in the description of Bose-Einstein condensates is presented. The obtained results generalize earlier efforts found in the literature in several aspects.
Michael Hintermüller   +3 more
openaire   +3 more sources

Nonlinear quantum search using the Gross–Pitaevskii equation

open access: yesNew Journal of Physics, 2013
We solve the unstructured search problem in constant time by computing with a physically motivated nonlinearity of the Gross–Pitaevskii type. This speedup comes, however, at the novel expense of increasing the time-measurement precision.
David A Meyer, Thomas G Wong
doaj   +1 more source

Turbulence in the two-dimensional Fourier-truncated Gross–Pitaevskii equation

open access: yesNew Journal of Physics, 2013
We undertake a systematic, direct numerical simulation of the two-dimensional, Fourier-truncated, Gross–Pitaevskii equation to study the turbulent evolutions of its solutions for a variety of initial conditions and a wide range of parameters.
Vishwanath Shukla   +2 more
doaj   +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

Dilute dipolar quantum droplets beyond the extended Gross-Pitaevskii equation

open access: yesPhysical Review Research, 2019
Dipolar quantum droplets are exotic quantum objects that are self-bound due to the subtle balance of attraction, repulsion, and quantum correlations. Here we present a systematic study of the critical atom number of these self-bound droplets, comparing ...
Fabian Böttcher   +10 more
doaj   +1 more source

q-Deformed Gross Pitaevskii Equation [PDF]

open access: yes, 2023
We derive the Gross Pitaevskii equation (GPE) for condensate of bosons obeying deformed statistics under external potential and inter-particle interaction. First, we obtain the well-known Schrodinger equation.
Maleki, Mahnaz, Mohammadzadeh, Hosein
core   +1 more source

Resonant Solutions to Gross-Pitaevskii Equation With Periodic Potential [PDF]

open access: yes, 2022
Over the years, many methods have been used for solving the Gross-Pitaevskii equation which is also known as a nonlinear Schrodinger equation. In this thesis, we study a nonlinear polyharmonic equation with a periodic potential and quasi-periodic ...
Duaibes, Arien
core  

Exactly solvable Gross–Pitaevskii type equations

open access: yesJournal of Physics Communications, 2021
TWe suggest a method to construct exactly solvable Gross-Pitaevskii type equations, especially the variable-coefficient high-order Gross-Pitaevskii type equations. We show that there exists a relation between the Gross-Pitaevskii type equations. The Gross-Pitaevskii equations connected by the relation form a family.
Yuan-Yuan Liu, Wen-Du Li, Wu-Sheng Dai
openaire   +2 more sources

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

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