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Schemes for loading a Bose-Einstein condensate into a two-dimensional dipole trap
Yves Colombe, Demascoth Kadio, Maxim Olshanii +3
We propose two loading mechanisms of a degenerate Bose gas into a surface trap. This trap relies on the dipole potential produced by two evanescent optical waves far detuned from t…
Short-Distance Correlation Properties of the Lieb-Liniger System and Momentum Distributions of Trapped One-Dimensional Atomic Gases
Maxim Olshanii, Vanja Dunjko
We derive exact closed form expressions for the first few terms of the short-distance Taylor expansion of the one-body correlation function of the Lieb-Liniger gas. As an intermedi…
Producing Bose condensates using optical lattices
Maxim Olshanii, David Weiss
We relate the entropies of ensembles of atoms in optical lattices to atoms in simple traps. We then determine which ensembles of lattice-bound atoms will adiabatically transform in…
Stability of the two-dimensional Bose gases in the resonant regime
Ludovic Pricoupenko, Maxim Olshanii
We consider a two-dimensional Bose gas formed in a planar atomic trap in conditions where the two-dimensional scattering length exceeds all other microscopic length scales in the s…
Bosons in cigar-shape traps: Thomas-Fermi regime, Tonks-Girardeau regime, and between
Vanja Dunjko, Vincent Lorent, Maxim Olshanii
We present a quantitative analysis of the experimental accessibility of the Tonks-Girardeau gas in the current day experiments with cigar-trapped alkalis. For this purpose we deriv…
Rigorous approach to the problem of ultraviolet divergencies in dilute Bose gases
Maxim Olshanii, Ludovic Pricoupenko
We have found an expression for the full many-body Green's function of N pairwise finite-range interacting atoms, in a form of a chain fraction involving two-body T-matrices only,…
A Closed Class of Hydrodynamical Solutions for the Collective Excitations of a Bose-Einstein Condensate
Pippa Storey, Maxim Olshanii
A trajectory approach is taken to the hydrodynamical treatment of collective excitations of a Bose-Einstein condensate in a harmonic trap. The excitations induced by linear deforma…
Berry's Phase Induced Bose-Einstein condensation into a Vortex State
M. Olshanii, M. Naraschewski
The existence of a geometric phase in magnetic traps can be used to Bose condense a magnetically trapped atomic gas into a vortex state. We propose an experimental setup where a ma…
Finite-Temperature Collective Excitation of a Bose-Einstein Condensate
Maxim Olshanii
We derive a simple formula for the finite-temperature shifts of the collective excitations of a Bose-Einstein condensate. To test the validity of our treatment we apply it to expla…
Atomic Scattering in Presence of an External Confinement and a Gas of Impenetrable Bosons
Maxim Olshanii
We calculate, within the pseudopotential approximation, a one-dimensional scattering amplitude and effective one-dimensional interaction potential for atoms confined transversally…