Results 41 to 50 of about 113,215 (162)

Feshbach resonances with large background scattering length: interplay with open-channel resonances [PDF]

open access: yes, 2004
Feshbach resonances are commonly described by a single-resonance Feshbach model, and open-channel resonances are not taken into account explicitly. However, an open-channel resonance near threshold limits the range of validity of this model.
Verhaar, BJ Boudewijn   +8 more
core   +2 more sources

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

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

A Quantum Degenerate Mixture of $^{87}$Rb and $^{133}$Cs [PDF]

open access: yes, 2011
This thesis reports the formation of a dual-species Bose-Einstein condensate of $^{87}$Rb and $^{133}$Cs in the same trapping potential. Quantum degenerate mixtures exhibit rich physics inaccessible to single species experiments and provide an ideal ...
MCCARRON, DANIEL,JOHN
core  

On the adjoint of Laplace’s tidal equations [PDF]

open access: yes, 2014
The concept of the adjoint is regularly used in studies of both the resonances of physical systems and their response to external forcing. This report reviews the underlying theory involved in the adjoints of both differential equations and matrices and
Webb, D.J.
core   +1 more source

Noniterative finite amplitude methods for giant resonances and the application to the neutron radiative capture cross sections [PDF]

open access: yesEPJ Web of Conferences
We calculate the electric dipole (E1) and the magnetic dipole (M1) giant resonances with noniterative finite amplitude methods and demonstrate how the fully microscopic density functional theory predicts the giant resonances without any phenomenological ...
Sasaki Hirokazu   +2 more
doaj   +1 more source

Feshbach resonances in

open access: yes, 2004
We describe s-wave collisions between ultracold 23Na and 87Rb atoms in the presence of a magnetic field. For any collision input channel knowledge of the singlet and triplet intermolecular potentials [CITE] enables us to predict the variation in ...
L. O. Baksmaty   +3 more
core   +1 more source

Formation of fermionic molecules via interisotope Feshbach resonances [PDF]

open access: yes, 2004
The lithium interaction potentials in terms of formation of fermionic molecules via interisotopic Feshbach resonances, were analyzed. The uncertainties for the position of the wide 6Li Feshbach resonance was presented and an analytical scattering model ...
Kempen, van, E.G.M.   +6 more
core   +2 more sources

Low‐Energy Atomic Scattering: S‐Wave Relation Between the Interaction Potential and the Phase Shift

open access: yesAnnalen der Physik, Volume 537, Issue 11, November 2025.
The validity of the on‐shell approximation for s‐wave scattering is examined across one, two, and three dimensions using exactly solvable model interaction potentials. By comparing exact and approximate s‐wave components of the interaction potential, the analysis reveals that the approximation improves with increasing momentum and decreasing ...
Francesco Lorenzi, Luca Salasnich
wiley   +1 more source

Feshbach resonances in positron scattering from sodium

open access: yes, 2012
S-, P- and D-wave Feshbach resonances in positron-sodium scattering have been investigated by using the momentum space coupled-channels optical method.
L. Jiao, Y. Zhou, Y. Cheng, R.M. Yu
core   +1 more source

Home - About - Disclaimer - Privacy