Results 81 to 90 of about 32,263 (260)
Dynamics characterization of modified Gross–Pitaevskii equation
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Filho, Victo S. +3 more
openaire +2 more sources
The critical parameters and energies, at which the wave function of the Bose Einstein Condensate in a double well trap exhibit the symmetry breaking, are estimated. The phase space representation of the states is obtained trough the Wigner function and the trends of the negativities are analyzed.
D. J. Nader, E. Serrano‐Ensástiga
wiley +1 more source
Light–pulse atom interferometry with ultra‐cold quantum gases is proposed and numerically benchmarked as a competitive platform to test the modulo‐square hypothesis of Born's rule. The interferometric protocol utilizes a combination of double Bragg and single Raman diffraction pulses to induce multipath interference in Bose–Einstein condensates and ...
Simon Kanthak +3 more
wiley +1 more source
Spin-wave growth via Shapiro resonances in a spinor Bose-Einstein condensate
We theoretically study the resonant phenomenon in a spin-1 Bose-Einstein condensate periodically driven by a quadratic Zeeman coupling. This phenomenon is closely related to the Shapiro steps in superconducting Josephson junctions, and the previous ...
Yuya Imaeda +2 more
doaj +1 more source
The stochastic Gross-Pitaevskii equation
We show how to adapt the ideas of local energy and momentum conservation in order to derive modifications to the Gross-Pitaevskii equation which can be used phenomenologically to describe irreversible effects in a Bose-Einstein condensate. Our approach involves the derivation of a simplified quantum kinetic theory, in which all processes are treated ...
Anglin, C. W. Gardiner J. R. +1 more
openaire +2 more sources
Haus/Gross–Pitaevskii equation for random lasers [PDF]
We report on experimental tests of the trend of random laserlinewidth versus pumping power as predicted by an Haus master equation that is formally identical to the one-dimensional Gross- Pitaevskii equation in an harmonic potential. Experiments are done by employing picosecond pumped dispersions of Titaniumdioxide particles in dye-doped methanol.
Marco Leonetti, Claudio Conti
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New opportunities for creating quantum states of light and matter with intense laser fields
Abstract Nonlinear dynamics provide an indispensable resource for creating quantum states of light, as well as other bosonic systems. Seminal work using second‐ and third‐order nonlinear optical crystals, cavity quantum electrodynamics, and superconducting circuits, have enabled generating squeezed states, as well as various non‐Gaussian quantum states
Nicholas Rivera
wiley +1 more source
Self-Similarity Analysis of the Nonlinear Schrödinger Equation in the Madelung Form
In the present study a particular case of Gross-Pitaevskii or nonlinear Schrödinger equation is rewritten to a form similar to a hydrodynamic Euler equation using the Madelung transformation.
Imre F. Barna +2 more
doaj +1 more source
Ground state solutions of the complex Gross Pitaevskii equation associated to exciton-polariton Bose-Einstein condensates [PDF]
Hichem Hajaiej +2 more
openalex +1 more source
Ab initio methods for finite temperature two-dimensional Bose gases
The stochastic Gross-Pitaevskii equation and modified Popov theory are shown to provide an ab initio description of finite temperature, weakly-interacting two-dimensional Bose gas experiments.
N. P. Proukakis +3 more
core +1 more source

