Results 51 to 60 of about 187,459 (173)

Bright solitary waves and non-equilibrium dynamics in atomic Bose-Einstein condensates [PDF]

open access: yes, 2012
In this thesis we investigate the static properties and non-equilibrium dynamics of bright solitary waves in atomic Bose-Einstein condensates in the zero-temperature limit, and we investigate the non-equilibrium dynamics of a driven atomic Bose-Einstein ...
BILLAM, THOMAS,PAUL   +2 more
core  

Toward Coherent Polaritonic Devices Operating at Room Temperature

open access: yesNanophotonics, 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
wiley   +1 more source

Dynamical and Bose-Einstein correlations of centrally produced pion pairs in hadron-hadron collisions [PDF]

open access: yes, 1977
Engels J, Schilling K. Dynamical and Bose-Einstein correlations of centrally produced pion pairs in hadron-hadron collisions. Nuclear Physics, B. 1978;136(2):349-364.We calculate dynamical and Bose-Einstein inclusive correlations of pion pairs (as ...
Engels, Jürgen   +3 more
core   +1 more source

Directional Flow of Confined Polaritons in CrSBr

open access: yesAdvanced 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
wiley   +1 more source

Dynamically Tunable Exciton‐Photon Coupling via Multi‐Physics Field in Transition Metal Dichalcogenide Microcavities

open access: yesAdvanced 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
wiley   +1 more source

Alternative techniques for the production and manipulation of ultracold atoms [PDF]

open access: yes, 2012
This Thesis contains details of the construction and characterisation of a compact apparatus for the cooling of ultracold atoms to quantum degeneracy, and their manipulation in flexible holographic optical traps. We have designed and built two iterations
Bruce, Graham D.
core   +2 more sources

Collective modes of a photon Bose–Einstein condensate with thermo-optic interaction

open access: yesNew Journal of Physics, 2019
Although for photon Bose–Einstein condensates the main mechanism of the observed photon–photon interaction has already been identified to be of a thermo-optic nature, its influence on the condensate dynamics is still unknown.
Enrico Stein   +2 more
doaj   +1 more source

Few‐Photon Fluorescence From Ultracold Bosons in an Optical Cavity

open access: yesContributions 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
wiley   +1 more source

Emergent classicality in continuous quantum measurements

open access: yes, 2013
We develop a classical theoretical description for nonlinear many-body dynamics that incorporates the back-action of a continuous measurement process. The classical approach is compared with the exact quantum solution in an example with an atomic Bose ...
Javanainen, Juha, Ruostekoski, Janne
core   +1 more source

On quantum phase crossovers in finite systems [PDF]

open access: yes, 2006
In this work we define a formal notion of a quantum phase crossover for certain Bethe ansatz solvable models. The approach we adopt exploits an exact mapping of the spectrum of a many-body integrable system, which admits an exact Bethe ansatz solution ...
Hibberd, Katrina E.   +2 more
core   +1 more source

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