Results 71 to 80 of about 36,425 (173)
Bose–Einstein condensation of 162Dy and 160Dy
New Journal of Physics, 2015 We report Bose–Einstein condensation of two isotopes of the highly magnetic element dysprosium: ^162 Dy and $^{160}$ Dy. For ^162 Dy, condensates with 10 ^5 atoms form below T = 50 nK. We find the evaporation efficiency for the isotope ^160 Dy to be poor;
Yijun Tang +3 more
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Directional Flow of Confined Polaritons in CrSBr
Advanced Materials, Volume 38, Issue 51, 11 September 2026.CrSBr, a layered magnetic semiconductor, naturally channels self‐hybridized excitonpolaritons into highly directional flow. Its intrinsic optical anisotropy, high refractive index, and strong lightmatter coupling enable long‐range guided modes along the a‐axis, with propagation lengths set by their excitonphoton admixture.
Pratap Chandra Adak +10 more
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Advanced Science, Volume 13, Issue 51, 14 September 2026.Dynamic microcavities provide reversible control over exciton‐photon coupling in two‐dimensional TMDs through piezoelectric, electrical, thermal, and all‐optical tuning. By reshaping detuning, Rabi splitting, and polariton composition, these strategies enable adaptable polaritonic functions, including optical switching, polariton lasing, and ...
Jingwen Zhang +7 more
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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
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Particle number fluctuations in a non-ideal pion gas
EPJ Web of Conferences, 2018 We consider a non-ideal hot pion gas with the dynamically fixed number of particles in the model with the λφ4 interaction. The effective Lagrangian for the description of such a system is obtained by dropping the terms responsible for the change of the ...
Kolomeitsev Evgeni E. +2 more
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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
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Annalen der Physik, Volume 538, Issue 8, August 2026.ABSTRACT The unification of quantum mechanics and general relativity remains a central problem in fundamental physics. Here, we study the gravitomagnetic Aharonov–Bohm (AB) effect for Cooper pairs in Kerr spacetime. Frame‐dragging by a rotating black hole (BH) generates an effective vector potential through the off‐diagonal metric term gtϕ$g_{t\phi }$,
Erdem Sucu, İzzet Sakallı
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Adaptive and Robust Control of Diamond Quantum Sensors via Meta‐Learning
Advanced Quantum Technologies, Volume 9, Issue 8, August 2026.Quantum Meta‐Learning: Meta‐learning frameworks address pulse transferability in NV‐center quantum sensing. By training on diverse tasks that simulate experimental variations, robust surrogate models are created that rapidly adapt to new scenarios without extensive recalibration.
Isabell Jauch +5 more
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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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Born-Kothari Condensation for Fermions
Entropy, 2017 In the spirit of Bose–Einstein condensation, we present a detailed account of the statistical description of the condensation phenomena for a Fermi–Dirac gas following the works of Born and Kothari.
Arnab Ghosh
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