97 citations · 463 across the 17 of their papers we have counts for
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Optical lattices as a tool to study defect-induced superfluidity
Grigory E. Astrakharchik, Konstantin V. Krutitsky, Maciej Lewenstein +2
We study the superfluid response, the energetic and structural properties of a one-dimensional ultracold Bose gas in an optical lattice of arbitrary strength. We use the Bose-Fermi…
One-dimensional Bose gas in optical lattices of arbitrary strength
Grigory E. Astrakharchik, Konstantin V. Krutitsky, Maciej Lewenstein +1
One-dimensional Bose gas with contact interaction in optical lattices at zero temperature is investigated by means of the exact diffusion Monte Carlo algorithm. The results obtaine…
Ultracold bosons with short-range interaction in regular optical lattices
K. V. Krutitsky
During the last decade, many exciting phenomena have been experimentally observed and theoretically predicted for ultracold atoms in optical lattices. This paper reviews these rapi…
Effects of Interactions and Temperature in Disordered Ultra-Cold Bose Gases
C. P. J. Adolphs, J. Towers, M. Piraud +2
We simulate ultra-cold interacting Bosons in quasi-one-dimensional, incommensurate optical lattices. In the tight-binding limit, these lattices have pseudo-random on-site energies…
Excitation dynamics in a lattice Bose gas within the time-dependent Gutzwiller mean-field approach
Konstantin V. Krutitsky, Patrick Navez
The dynamics of the collective excitations of a lattice Bose gas at zero temperature is systematically investigated using the time-dependent Gutzwiller mean-field approach. The exc…