Results 71 to 80 of about 5,958 (184)
Ultra cold atoms and Bose-Einstein condensation for quantum metrology
, 2009 Review paper in the EPJST volume "Quantum Metrology and Fundamental Constants", 13 pagesInternational audienceThis paper is a short introduction to cold atom physics and Bose-Einstein condensation. Light forces on atoms are presented, together with laser
H. Perrin, Perrin, Hélène
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Bose-Einstein Condensation and Superfluidity in 3D and 2D bosons [PDF]
, 2022 The refinement and the combination of laser cooling and evaporative cooling in dilute systems of alkali atoms lead to the achievement of Bose-Einstein condensation in 1995.
Tononi, Andrea
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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
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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
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Fröhlich versus Bose-Einstein condensation in pumped bosonic systems
Physical Review ResearchMagnon condensation, which emerges in pumped bosonic systems at room temperature, continues to garner great interest for its long-lived coherence. While traditionally formulated in terms of Bose-Einstein condensation, which typically occurs at ultralow ...
Wenhao Xu +6 more
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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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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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