Results 51 to 60 of about 912,798 (201)
Abstract Whilst survey research on national attachments has used various measures, the question of how respondents understand these measures, and especially the highly ambiguous concepts they entail, has remained understudied. Moreover, scholars have used samples consisting of “citizens”, thereby not distinguishing between citizens with and citizens ...
Marlene Mußotter, Eunike Piwoni
wiley +1 more source
Bosons and fermions near Feshbach resonances [PDF]
Near Feshbach resonances, $n|a|^3\gg 1$, systems of Bose and Fermi particles become strongly interacting/dense. In this unitary limit both bosons and fermions have very different properties than in a dilute gas, e.g., the energy per particle approach a value $\hbar^2n^{2/3}/m$ times an universal many-body constant.
openaire +2 more sources
Feshbach resonances in a nonseparable trap [PDF]
We consider a pair of atoms in an arbitrary trapping potential in the presence of magnetically tunable Feshbach resonance. We find the energy levels and occupation of the bound molecular states taking into account possible coupling between center of mass and relative motion induced by the trap.
Jachymski K., Idziaszek Z., Calarco T.
openaire +2 more sources
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
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]
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
Feshbach resonance: A one dimensional example [PDF]
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
Feshbach resonance of heavy exciton-polaritons [PDF]
We study interactions between polaritons formed by hybridization of excitons in a two-dimensional (2D) semiconductor with surface optical phonons or plasmons.
Fogler, Michael M., Vermilyea, Brian
core +1 more source
Quench experiments on a unitary Bose gas around a broad Feshbach resonance have led to the discovery of universal dynamics. This universality manifests in the measured atomic momentum distributions, where, asymptotically, a quasiequilibrated metastable ...
Ke Wang +4 more
doaj +1 more source
Observation of Magnetically Induced Trap Loss of Ultracold Thulium Atoms
We report the observation of influence of homogeneous magnetic field on an optical lattice losses of ultracold thulium atoms. The atomic cloud temperature was T = 15 mK. The dependence of trap population on a value of magnetic field has a broad resonance
Kalganova E.S. +8 more
doaj +1 more source

