44 citations · 90 across the 7 of their papers we have counts for
7 papers
Mott transition in anharmonic confinement
Emil Lundh
Two effects are identified that affect the visibility of the Mott transition in an atomic gas in an optical lattice confined in a power-law potential. The transition can be made mo…
Transition from a two-dimensional superfluid to a one-dimensional Mott insulator
Sara Bergkvist, Robert Saers, Emil Lundh +3
A two-dimensional system of atoms in an anisotropic optical lattice is studied theoretically. If the system is finite in one direction, it is shown to exhibit a transition between…
Construction of a giant vortex state in a trapped Fermi system
Emil Lundh
A superfluid atomic Fermi system may support a giant vortex if the trapping potential is anharmonic. In such a potential, the single-particle spectrum has a positive curvature as a…
Dynamical stability of a doubly quantized vortex in a three-dimensional condensate
Emil Lundh, Halvor M. Nilsen
The Bogoliubov equations are solved for a three-dimensional Bose-Einstein condensate containing a doubly quantized vortex, trapped in a harmonic potential. Complex frequencies, sig…
One-dimensional extended Bose-Hubbard model with a confining potential: a DMRG analysis
Laura Urba, Emil Lundh, Anders Rosengren
The extended Bose-Hubbard model in a quadratic trap potential is studied using a finite-size density-matrix renormalization group method (DMRG). We compute the boson density profil…
Cold collisions in strong laser fields: partial wave analysis of magnesium collisions
J. Piilo, E. Lundh, K. -A. Suominen
We have developed Monte Carlo wave function simulation schemes to study cold collisions between magnesium atoms in a strong red-detuned laser field. In order to address the strong-…