Results 101 to 110 of about 5,364 (225)
Temporal evolution of cosmological density perturbations of the Bose–Einstein condensate dark matter
European Physical Journal C: Particles and FieldsDark matter is assumed to be composed of scalar boson particles that form Bose–Einstein condensate during the cosmic evolution of the Universe when the temperature of the dark matter is below the critical temperature $$T_{cr}$$ T cr .
Subhra Mondal, Amitava Choudhuri
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Thermo-optical interactions in a dye-microcavity photon Bose–Einstein condensate
New Journal of Physics, 2017 Superfluidity and Bose–Einstein condensation are usually considered as two closely related phenomena. Indeed, in most macroscopic quantum systems, like liquid helium, ultracold atomic Bose gases, and exciton-polaritons, condensation and superfluidity ...
Hadiseh Alaeian +4 more
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Generation of Anisotropic Second‐Harmonic Petal‐Like Beams with NbOBr2 Holograms
Advanced Photonics Research, Volume 7, Issue 4, April 2026.Highly anisotropic second‐harmonic petal‐like beams with different combinations of the topological charges of vortex beams are produced using ultrathin NbOBr2 holograms. These demonstrations provide a pathway toward the development of chip‐scale polarization‐sensitive functional optical devices for many applications.
Jayanta Deka, Jie Gao, Xiaodong Yang
wiley +1 more source
Bose-Einstein condensation and laser trapping of ultra-cold atoms
, 2022 reservedCondensazione di Bose - Einstein e intrappolamento laser di atomi ultra ...
TUMMINIA, AGNESE MARIA MARTINA
core
Condensed Matter Physics, 2010 For a Bose atom system whose energy operator is diagonal in the so-called number operators and its ground state has an internal two-level structure with negative energies, exact expressions for the limit free canonical energy and pressure are obtained ...
M. Corgini, D.P. Sankovich
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Coexistence of photonic and atomic Bose-Einstein condensates in ideal atomic gases
Condensed Matter Physics, 2015 We have studied conditions of photon Bose-Einstein condensate formation that is in thermodynamic equilibrium with ideal gas of two-level Bose atoms below the degeneracy temperature.
N. Boichenko , Yu. Slyusarenko
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Bose-Einstein condensate in a box
Physical Review A, 2005 4 pages, 5 ...
Meyrath, T. P. +4 more
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Long‐Range Exciton Energy Transfer in Two‐Dimensional Materials
Laser &Photonics Reviews, Volume 20, Issue 8, 17 April 2026.This review highlights recent advances in long‐range exciton energy transfer within planar 2D‐material architectures. It emphasizes the emergence of self‐hybridized excitonpolaritons, exciton coupling to surface plasmon polaritons and plasmonic lattices, and the role of dipoledipole transfer pathways in enabling efficient nanoscale energy transport ...
Paul H. Bittorf +8 more
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Dynamics of bright solitary matter-waves [PDF]
, 2013 This thesis describes the formation of a 85Rb Bose-Einstein condensate and the subsequent creation of a bright solitary matter-wave in a quasi-one-dimensional optical waveguide, with experiments investigating the dynamics of a solitary wave in comparison
WILES, TIMOTHY,PETER +1 more
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Bose-Einstein condensation in a magnetic lattice
, 2015 This thesis reports the realization of Bose-Einstein condensation (BEC) of 87Rb F=1 atoms in multiple sites of a one-dimensional 10 μm-periods magnetic lattice.
Prince Kurumthodathu Surendran (19124086)
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