Results 101 to 110 of about 6,001 (225)

Temporal evolution of cosmological density perturbations of the Bose–Einstein condensate dark matter

European Physical Journal C: Particles and Fields
Dark 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
doaj   +1 more source

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, Mira Schedensack, Clara Bartels, Daniel Peterseim, Martin Weitz   +4 more
doaj   +1 more source

Bechgaard Salt‐Like Polymers and Their Applications in Organic Electronics

Macromolecular Rapid Communications, Volume 47, Issue 8, 17 April 2026.
The report presents a flexible conducting polymer micro‐wire grown from the vapor phase via an oxidative polymerization route. Electrical measurements show that the produced micro‐wires have relatively high conductivity and non‐linear electrical characteristics.
Bartlomiej Kolodziejczyk
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  

Fröhlich versus Bose-Einstein condensation in pumped bosonic systems

Physical Review Research
Magnon 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, Andrey A. Bagrov, Farhan T. Chowdhury, Luke D. Smith, Daniel R. Kattnig, Hilbert J. Kappen, Mikhail I. Katsnelson   +6 more
doaj   +1 more source

Soluble model of Bose-atoms with two level internal structure: non-conventional Bose-Einstein condensation

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
doaj   +1 more source

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
doaj   +1 more source

Bose-Einstein condensate in a box

Physical Review A, 2005
4 pages, 5 ...
Meyrath, T. P., Schreck, F., Hanssen, J. L., Chuu, C. -S., Raizen, M. G.   +4 more
openaire   +2 more sources

Entangled Photon Pair Generator Via Biexciton–Exciton Cascade in Semiconductor Quantum Dots and its Simulation

Advanced Quantum Technologies, Volume 9, Issue 4, April 2026.
In this work an entangled photon pair generator that utilizes the biexciton–exciton cascade in semiconductor quantum dots is described on a physical, mathematical, and software level for interdisciplinary audiences, leading to Kraus operators to seamlessly incorporate it into bigger simulations.
Simon Sekavčnik, Paul Kohl, Janis Nötzel   +2 more
wiley   +1 more source

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, Timothy Peter Wiles   +1 more
core