Results 21 to 30 of about 1,422 (47)

Modification of scattering lengths via magnetic dipole-dipole interactions

open access: yes, 2006
We propose a new mechanism for tuning an atomic s-wave scattering length. The effect is caused by virtual transitions between different Zeeman sublevels via magnetic dipole-dipole interactions. These transitions give rise to an effective potential, which,
D. A. Varshalovich   +4 more
core   +1 more source

Bose-Einstein Condensation and Casimir Effect of Trapped Ideal Bose Gas in between two Slabs

open access: yes, 2007
We study the Bose-Einstein condensation for a 3-d system of ideal Bose gas which is harmonically trapped along two perpendicular directions and is confined in between two slabs along the other perpendicular direction.
54   +10 more
core   +1 more source

Statistical properties of one dimensional attractive Bose gas

open access: yes, 2011
Using classical field approximation we present the first study of statistical properties of one dimensional Bose gas with attractive interaction. The canonical probability distribution is generated with the help of a Monte Carlo method.
Brewczyk M.   +5 more
core   +1 more source

Hartree-Fock-Bogoliubov Theory of Dipolar Fermi Gases

open access: yes, 2009
We construct a fully self-consistent Hartree-Fock-Bogoliubov theory that describes a spinless Fermi gas with long-range interaction. We apply this theory to a system of uniform dipolar fermionic polar molecules, which has attracted much attention ...
Jiang, Lei   +5 more
core   +1 more source

Theory of magnetization plateaux in the Shastry-Sutherland model

open access: yes, 2008
Using perturbative continuous unitary transformations, we determine the long-range interactions between triplets in the Shastry-Sutherland model, and we show that an unexpected structure develops at low magnetization with plateaux progressively appearing
Dorier, J., Mila, F., Schmidt, K. P.
core   +1 more source

Quantum Typicality and Initial Conditions

open access: yes, 2015
If the state of a quantum system is sampled out of a suitable ensemble, the measurement of some observables will yield (almost) always the same result.
Facchi, Paolo   +2 more
core   +1 more source

Condensate Heating by Atomic Losses

open access: yes, 2003
Atomic Bose-Einstein condensate is heated by atomic losses. Predicted depletion ranges from 1% for a uniform 3D condensate to around 10% for a quasi-1D condensate in a harmonic trap.Comment: 4 pages in RevTex, 1 eps ...
A. Görlitz   +17 more
core   +1 more source

Interference scheme to measure light-induced nonlinearities in Bose-Einstein condensates

open access: yes, 2003
Light-induced nonlinear terms in the Gross-Pitaevskii equation arise from the stimulated coherent exchange of photons between two atoms. For atoms in an optical dipole trap this effect depends on the spatial profile of the trapping laser beam.
D. O’Dell   +23 more
core   +1 more source

Collapse of a Bose gas: kinetic approach

open access: yes, 2012
We have analytically explored temperature dependence of critical number of particles for the collapse of a harmonically trapped attractively interacting Bose gas below the condensation point by introducing a kinetic approach within the Hartree-Fock ...
C Ticknor   +22 more
core   +1 more source

Equivalence of Bose-Einstein condensation and symmetry breaking

open access: yes, 2006
Based on a classic paper by Ginibre [Commun. Math. Phys. {\bf 8} 26 (1968)] it is shown that whenever Bogoliubov's approximation, that is, the replacement of a_0 and a_0^* by complex numbers in the Hamiltonian, asymptotically yields the right pressure ...
A. Sütő   +12 more
core   +1 more source

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