Results 51 to 60 of about 14,870 (193)
Quantum chaos in Feshbach resonances of the ErYb system
New Journal of Physics, 2020 We investigate ultracold magnetic-field-assisted collisions in the so far unexplored ErYb system. The nonsphericity of the Er atom leads to weakly anisotropic interactions that provide the mechanism for Feshbach resonances to emerge.
Maciej B Kosicki +2 more
doaj +1 more source
Feshbach resonant scattering of three fermions in one-dimensional wells [PDF]
, 2009 We study the weak-tunnelling limit for a system of cold 40K atoms trapped in a one-dimensional optical lattice close to an s-wave Feshbach resonance. We calculate the local spectrum for three atoms at one site of the lattice within a two-channel model ...
Duric, T., Ho, A. F., Lee, D . K. K.
core +3 more sources
Feshbach resonance: A one dimensional example [PDF]
American 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
New Journal of Physics, 2015 Spectroscopic measurements are made and obtained for three molecular levels within 50 MHz of the atomic continuum, along with their variation of magnetic field in ultracold ^40 K Fermi gases.
Lianghui Huang +7 more
doaj +1 more source
, 2011 Starting from a multichannel quantum-defect theory, we derive analytic descriptions of a magnetic Feshbach resonance in an arbitrary partial wave $l$, and the atomic interactions around it.
Bo Gao, F. H. Mies, L. D. Landau
core +1 more source
Advanced 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
Fitting ultracold resonances without a fit
New Journal of Physics, 2021 We present a numerical procedure allowing one to extract Feshbach resonance parameters from numerical calculations without relying on approximate fitting procedures.
A Simoni
doaj +1 more source
An association sequence suitable for producing ground-state RbCs molecules in optical lattices
SciPost Physics, 2023 We identify a route for the production of $^{87}$Rb$^{133}$Cs molecules in the $X^1\Sigma^+$ rovibronic ground state that is compatible with efficient mixing of the atoms in optical lattices.
Arpita Das, Philip D. Gregory, Tetsu Takekoshi, Luke Fernley, Manuele Landini, Jeremy M. Hutson, Simon L. Cornish, Hanns-Christoph Nägerl
doaj +1 more source
BCS-BEC crossover in a gas of Fermi atoms with a p-wave Feshbach resonance
, 2004 We investigate unconventional superfluidity in a gas of Fermi atoms with an anisotropic p-wave Feshbach resonance. Including the p-wave Feshbach resonance as well as the associated three kinds of quasi-molecules with finite orbital angular momenta $L_z ...
A. Leggett, D. Vollhardt, Y. Ohashi
core +1 more source
High temperature expansion applied to fermions near Feshbach resonance [PDF]
, 2004 We show that, apart from a difference in scale, all of the surprising recently observed properties of a degenerate Fermi gas near a Feshbach resonance persist in the high temperature Boltzmann regime.
E. Beth +4 more
core +1 more source