Results 41 to 50 of about 15,266 (159)
Broadening of Spectral Lines for Decaying Trapped States of Photonic Meta‐Atoms
Electronics Letters, Volume 62, Issue 1, January/December 2026.We discuss the phase‐matched capture‐and‐decay of dispersive waves by a photonic meta‐atom, enabled by higher‐order dispersive effects in a nonlinear waveguide. The emitted resonant modes exhibit a Lorentzian lineshape, with width determined by the lifetime of the decay process.
Shihao Zhang +4 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
doaj +1 more source
Bose-Einstein Condensates in the Large Gas Parameter Regime [PDF]
, 2001 Bose-Einstein condensates of 10$^4$ $^{85}$Rb atoms in a cylindrical trap are studied using a recently proposed modified Gross-Pitaevskii equation. The existence of a Feshbach resonance allows for widely tuning the scattering length of the atoms, and ...
A. Fabrocini +19 more
core +3 more sources
Supercurrents and Tunneling in Massive Many‐Vortex Necklaces and Star‐Lattices
Annalen der Physik, Volume 537, Issue 12, December 2025.It is numerically shown how massive many‐vortex systems, in a mixture of Bose–Einstein condensates, can host the bosonic tunneling of the infilling component in an almost‐periodic way when the vortices are organized in necklaces or star‐lattices. The purpose is to explore the conditions for the onset of Josephson supercurrents in rotating many‐vortex ...
Alice Bellettini, Vittorio Penna
wiley +1 more source
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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Pade approximations of solitary wave solutions of the Gross-Pitaevskii equation
, 2003 Pade approximants are used to find approximate vortex solutions of any winding number in the context of Gross-Pitaevskii equation for a uniform condensate and condensates with axisymmetric trapping potentials.
Berloff N G +13 more
core +1 more source
Discrete Chiral Ballistic Polariton Laser
Laser &Photonics Reviews, Volume 19, Issue 15, August 7, 2025.Planar microcavities in the strong light–matter coupling regime exhibit exciton‐polariton modes with a strong chiral response toward circularly polarized light. This feature is exploited alongside inherent spin‐orbit coupling of cavity light to generate giant discrete optical vortices in polygonal arrays of exciton‐polariton condensates.
Zuzanna Werner +5 more
wiley +1 more source
Self-Similarity Analysis of the Nonlinear Schrödinger Equation in the Madelung Form
Advances in Mathematical Physics, 2018 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
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Advanced Quantum Technologies, Volume 8, Issue 7, July 2025.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
Acta Polytechnica, 2013 We investigate the Gross-Pitaevskii equation for a Bose-Einstein condensate in a PT symmetric double-well potential by means of the time-dependent variational principle and numerically exact solutions.
Holger Cartarius +5 more
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