Results 41 to 50 of about 912,798 (201)

Cyclic lattice Feshbach resonances [PDF]

open access: yesPhysical Review B, 2006
4 pages, 2 figures included;two typos ...
openaire   +2 more sources

Closed-channel parameters of Feshbach resonances

open access: yesSciPost Physics
This work investigates how the closed channel of a Feshbach resonance is characterised by experimental observables. Surprisingly, it is found that the two-body observables associated with the Feshbach resonance can be insensitive to the properties of the
Pascal Naidon
doaj   +1 more source

Formation of ultracold NaRb Feshbach molecules

open access: yesNew Journal of Physics, 2015
We report the creation of ultracold bosonic ^23 Na ^87 Rb Feshbach molecules via magneto-association. By ramping the magnetic field across an interspecies Feshbach resonance (FR), at least 4000 molecules can be produced out of the near degenerate ...
Fudong Wang   +5 more
doaj   +1 more source

Feshbach resonances in ultracold K(39)

open access: yesNew Journal of Physics, 2007
We discover several magnetic Feshbach resonances in collisions of ultracold K(39) atoms, by studying atom losses and molecule formation. Accurate determination of the magnetic-field resonance locations allows us to optimize a quantum collision model for potassium isotopes.
D'Errico C   +6 more
openaire   +6 more sources

Random Matrix Theory Analysis of a Temperature-Related Transformation in Statistics of Fano–Feshbach Resonances in Thulium Atoms

open access: yesEntropy, 2020
Recently, the transformation from random to chaotic behavior in the statistics of Fano–Feshbach resonances was observed in thulium atoms with rising ensemble temperature.
Emil T. Davletov   +4 more
doaj   +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

Feshbach spectroscopy of an ultracold Rb-Cs mixture [PDF]

open access: yes, 2012
This thesis reports the observation of interspecies Feshbach resonances in an ultracold mixture of Rb and Cs atoms. A versatile combined magnetic and optical potential has been designed and constructed which is capable of bringing both $^{87}\rm{Rb}$ and
Jenkin, Daniel Lester   +2 more
core  

Signatures of Superfluidity for Feshbach-Resonant Fermi Gases [PDF]

open access: yesPhysical Review Letters, 2004
We consider atomic Fermi gases where Feshbach resonances can be used to continuously tune the system from weak to strong interaction regime, allowing to scan the whole BCS-BEC crossover. We show how a probing field transferring atoms out of the superfluid can be used to detect the onset of the superfluid transition in the high-$T_c$ and BCS regimes ...
Kinnunen, J., Rodriguez, M., Torma, P.
openaire   +3 more sources

Quantum chaos in Feshbach resonances of the ErYb system

open access: yesNew 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

Dipolar Bose–Einstein condensation of 168Er and anisotropic expansion dynamics

open access: yesResults in Physics, 2023
We report on the realization of Bose–Einstein condensation (BEC) of 168Er atoms in a crossed optical dipole trap. A magneto-optical trap is realized with just one laser driving the narrow-line transition which increases the phase space density and ...
Rui Song   +5 more
doaj   +1 more source

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