Results 61 to 70 of about 36,425 (173)
Bose condensation in (random) traps
Condensed Matter Physics, 2009 We study a non-interacting (perfect) Bose-gas in random external potentials (traps). It is shown that a generalized Bose-Einstein condensation in the random eigenstates manifests if and only if the same occurs in the one-particle kinetic-energy ...
V.A. Zagrebnov, J.V. Pulé, Th. Jaeck
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Soliton diffusion in a Bose-Einstein condensate: A signature of the analogue Hawking radiation
Physics Letters B, 2019 The analog Hawking radiation (HR) emanating from a sonic black hole horizon formed in a cigar-shaped Bose-Einstein condensate (BEC) at finite temperature is investigated. In particular, we study the effect of HR on a dark (topological) soliton.
Chao Hang +2 more
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Structure of condensed gas in the uniform medium
Cumhuriyet Science Journal, 2020 The Bose-Einstein condensate, which has very low particle density and a highly complex quantum structure, has been proven experimentally for rubidium, sodium, lithium, hydrogen, metastable helium, cesium and chromium atoms to date.
Abidin Kılıç
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Optimal Rate for Bose–Einstein Condensation in the Gross–Pitaevskii Regime [PDF]
Communications in Mathematical Physics, 2018 We consider systems of bosons trapped in a box, in the Gross–Pitaevskii regime. We show that low-energy states exhibit complete Bose–Einstein condensation with an optimal bound on the number of orthogonal excitations. This extends recent results obtained
Chiara Boccato +3 more
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Machine learning for achieving Bose-Einstein condensation of thulium atoms [PDF]
, 2020 Bose-Einstein condensation (BEC) is a powerful tool for a wide range of research activities, a large fraction of which are related to quantum simulations.
E. Davletov +5 more
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Quantum‐Mechanical Wave Functions in Singular Potentials: Linear and Nonlinear States
Advanced Physics Research, Volume 5, Issue 10, October 2026.The attractive singular potential −1/r2$-1/r^2$ gives rise to the quantum collapse in the 3D linear Schroedinger equation. The article summarizes theoretical results demonstrating suppression of the collapse and creation of the missing ground state (GS) in a gas of bosonic particles, carrying an electric dipole moment, which are pulled to the central ...
Hidetsugu Sakaguchi, Boris A. Malomed
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Bose-Einstein Condensation on the Surface of a Sphere. [PDF]
Physical Review Letters, 2019 Motivated by the recent achievement of space-based Bose-Einstein condensates (BEC) with ultracold alkali-metal atoms under microgravity and by the proposal of bubble traps which confine atoms on a thin shell, we investigate the BEC thermodynamics on the ...
A. Tononi, L. Salasnich
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Large Rabi Splitting Driven by Plasmon‐Enhanced Hybrid Anapole States in Si–Au–WSe2 Heterostructures
Nanophotonics, Volume 15, Issue 18, 25 September 2026.A silicon hybrid‐anapole microcavity coupled with a plasmonic array enables tripartite strong coupling with WSe2 excitons. Spatially extended field enhancement and coherent cavity–plasmon hybridization strengthen light–matter interactions, producing a giant 330 meV Rabi splitting at room temperature and offering a compact platform for low‐exciton ...
Yanhui Deng +6 more
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Two-dimensional Bose–Einstein condensate under pressure
New Journal of Physics, 2015 Evading the Mermin–Wagner–Hohenberg no-go theorem and revisiting with rigor the ideal Bose gas confined in a square box, we explore a discrete phase transition in two spatial dimensions.
Wonyoung Cho +2 more
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Toward Coherent Polaritonic Devices Operating at Room Temperature
Nanophotonics, Volume 15, Issue 17, 11 September 2026.Polariton condensate formation and long‐range coherent transport is demonstrated using molecular exciton polaritons at room temperature (left). Waveguides and related photonic structures, such as Y‐splitters and interferometers, are realized via a focused ion beam etching of the planar microcavity. Coherent propagation of the condensate is demonstrated
Addhyaya Sharma +8 more
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