Results 51 to 60 of about 1,617,592 (202)
Few‐Photon Fluorescence From Ultracold Bosons in an Optical Cavity
Contributions to Plasma Physics, Volume 66, Issue 7-8, September 2026.ABSTRACT Within a cavity quantum electrodynamics framework, we analyse the fluorescent spectrum of ultracold bosons in resonant and second‐harmonic generation (SHG) regimes. Two settings are considered: (i) (few) bosons in an optical lattice and (ii) a trapped two‐component dilute Bose–Einstein condensate (2BEC) within the Bogoliubov scheme.
Megha Gopalakrishna +2 more
wiley +1 more source
Journal of High Energy Physics, 2022 A dilute gas of Bose-Einstein condensed atoms in a non-rotated and axially symmetric harmonic trap is modelled by the time dependent Gross-Pitaevskii equation.
Julien Garaud, Antti J. Niemi
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Numerical Identification of Stationary States and Their Stability in a Model of Quantum Droplets
Studies in Applied Mathematics, Volume 157, Issue 3, September 2026.ABSTRACT In this work, we are motivated by a recent variant of the nonlinear Schrödinger (NLS) equation describing cold, dilute atomic condensates with quantum fluctuation effects. Our goal is to develop robust numerical methods capable of uncovering diverse stationary solutions in such NLS models.
Sun Lee +2 more
wiley +1 more source
The Casimir-like effect in a one-dimensional Bose gas
New Journal of Physics, 2019 The electromagnetic Casimir effect manifests as the interaction between uncharged conducting objects that are placed in a vacuum. More generally, the Casimir-like effect denotes an induced interaction between external bodies in a fluctuating medium.
Benjamin Reichert +2 more
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Visualization and Control of Quasi‐Monoenergetic Proton Shock Waves in a Single Nanoplasma
Nanophotonics, Volume 15, Issue 13, 13 July 2026.Femtosecond laser pulses irradiate isolated gold nanoparticles to yield tunable quasi‐monoenergetic proton shells. Proton energy correlates linearly with laser intensity, providing a compact scheme for easily modulated laser‐driven ion sources. ABSTRACT This work demonstrates direct visualization and deterministic control of quasi‐monoenergetic proton ...
Zhijie Yang +6 more
wiley +1 more source
Density matrix form of Gross-Pitaevskii equation
, 2014 We consider the generalized pure state density matrix which depends on different time moments. The evolution equation for this density matrix is obtained in case where the density matrix corresponds to the solutions of Gross-Pitaevskii ...
V. N. Chernega +5 more
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Conserved energies for the one dimensional Gross-Pitaevskii equation [PDF]
, 2020 We prove the global-in-time well-posedness of the one dimensional Gross-Pitaevskii equation in the energy space, which is a complete metric space equipped with a newly introduced metric and with the energy norm describing the H$^{8}$ regularities of the ...
Koch, H., Liao, Xian
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Gradient flow finite element discretizations with energy-based adaptivity for the Gross-Pitaevskii equation [PDF]
, 2021 We present an effective adaptive procedure for the numerical approximation of the steady-state Gross–Pitaevskii equation. Our approach is solely based on energy minimization, and consists of a combination of a novel adaptive finite element mesh ...
Stamm, Benjamin +2 more
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Spin-wave growth via Shapiro resonances in a spinor Bose-Einstein condensate
Physical Review Research, 2021 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
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Standing waves of nonlinear Schrödinger systems with all attractive forces
Journal of the London Mathematical Society, Volume 113, Issue 6, June 2026.Abstract Since the pioneering work of Lin and Wei on nonlinear Schrödinger systems of n$n$ components with interaction forces aij$a_{ij}$ between the i$i$‐th and j$j$‐th components for 1⩽i,j⩽n$1\leqslant i,j\leqslant n$, there have been numerous further developments in many directions. However, even in the simplest case where all interaction forces are
Jaeyoung Byeon
wiley +1 more source