Results 81 to 90 of about 1,480,319 (221)

Hybridized tetraquarks

open access: yesPhysics Letters B, 2016
We propose a new interpretation of the neutral and charged X,Z exotic hadron resonances. Hybridized-tetraquarks are neither purely compact tetraquark states nor bound or loosely bound molecules but rather a manifestation of the interplay between the two.
A. Esposito, A. Pilloni, A.D. Polosa
doaj   +1 more source

Universality of weakly bound dimers and Efimov trimers close to Li-Cs Feshbach resonances [PDF]

open access: yes, 2015
We study the interspecies scattering properties of ultracold Li-Cs mixtures in their two energetically lowest spin channels in the magnetic field range between 800 G and 1000 G. Close to two broad Feshbach resonances we create weakly bound LiCs dimers by
Häfner, S.   +5 more
core   +3 more sources

Realizing Fulde-Ferrell Superfluids via a Dark-State Control of Feshbach Resonances. [PDF]

open access: yesPhysical Review Letters, 2017
We propose that the long-sought Fulde-Ferrell superfluidity with nonzero momentum pairing can be realized in ultracold two-component Fermi gases of ^{40}K or ^{6}Li atoms by optically tuning their magnetic Feshbach resonances via the creation of a closed-
Lianyi He, Hui Hu, Xia-ji Liu
semanticscholar   +1 more source

Feshbach resonance: A one dimensional example [PDF]

open access: yesAmerican Journal of Physics, 2013
We present a simple, one-dimensional example of a total spin-1/2 atom that interacts with another static atom in the presence of an external magnetic field. The interaction consists of delta potentials that act differently with each of the two components of the wavefunction.
openaire   +2 more sources

The Feshbach Resonances Applied to the Calculation of Stark Broadening of Ionized Spectral Lines: An Example of Interdisciplinary Research

open access: yesAtoms
In the present paper, we revisit the determination of Feshbach resonances in the elastic and fine-structure cross-sections of the spectral lines of ionized atoms colliding with electrons.
Sylvie Sahal-Bréchot, Haykel Elabidi
doaj   +1 more source

Interactions of Nitrogen‐Vacancy Centers in Diamond with Electron Beams: Implications for Quantum Sensing and Photoluminescence Stability

open access: yesAdvanced Optical Materials, Volume 13, Issue 35, December 12, 2025.
Under the influence of an electron beam, the photoluminescence (PL) and quantum sensing stability of nitrogen‐vacancy (NV) centers in fluorescent nanodiamonds (FNDs) change. This work elucidates structural and functional changes induced by the electron beam in FNDs and identifies imaging conditions to preserve NV properties and offers a pathway for top‐
Bradley T. Flinn   +10 more
wiley   +1 more source

Magnetic control of ultra-cold 6Li and 174Yb(3P2) atom mixtures with Feshbach resonances

open access: yesNew Journal of Physics, 2015
We theoretically evaluate the feasibility to form magnetically-tunable Feshbach molecules in collisions between fermionic ^6 Li atoms and bosonic metastable ^174 Yb( ^3 P _2 ) atoms.
Alexander Petrov   +2 more
doaj   +1 more source

Resonances in Systems Involving Positrons

open access: yesAtoms, 2020
When an incident particle on a target gets attached to the target, the cross-section at that energy could be much larger compared to those at other energies. This is a short-lived state and decays by emitting an electron.
Anand K. Bhatia
doaj   +1 more source

Strongly enhanced inelastic collisions in a Bose-Einstein condensate near Feshbach resonances

open access: yes, 1999
The properties of Bose-Einstein condensed gases can be strongly altered by tuning the external magnetic field near a Feshbach resonance. Feshbach resonances affect elastic collisions and lead to the observed modification of the scattering length. However,
A. J. Moerdijk   +17 more
core   +1 more source

Vibrational Feshbach Resonances Mediated by Nondipole Positron-Molecule Interactions. [PDF]

open access: yesPhysical Review Letters, 2017
Measurements of energy-resolved positron-molecule annihilation show the existence of positron binding and vibrational Feshbach resonances. The existing theory describes this phenomenon successfully for the case of infrared-active vibrational modes that ...
M. R. Natisin   +4 more
semanticscholar   +1 more source

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