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Effective Josephson dynamics in resonantly driven Bose-Einstein condensates
Martin Heimsoth, David Hochstuhl, Charles E. Creffield +2
We show that the orbital Josephson effect appears in a wide range of driven atomic Bose-Einstein condensed systems, including quantum ratchets, double wells and box potentials. We…
Dipole-dipole interactions in optical lattices do not follow an inverse cube power law
M. L. Wall, L. D. Carr
We study the effective dipole-dipole interactions in ultracold quantum gases on optical lattices as a function of asymmetry in confinement along the principal axes of the lattice.…
Strongly interacting fermions in an optical lattice
M. L. Wall, L. D. Carr
We analyze a system of two-component fermions which interact via a Feshbach resonance in the presence of a three-dimensional lattice potential. By expressing a two-channel model of…
Microscopic model for Feshbach interacting fermions in an optical lattice with arbitrary scattering length and resonance width
M. L. Wall, L. D. Carr
We numerically study the problem of two fermions in a three dimensional optical lattice interacting via a zero-range Feshbach resonance, and display the dispersions of the bound st…
The Hyperfine Molecular Hubbard Hamiltonian
M. L. Wall, L. D. Carr
An ultracold gas of heteronuclear alkali dimer molecules with hyperfine structure loaded into a one-dimensional optical lattice is investigated. The \emph{Hyperfine Molecular Hubba…
Metastable quantum phase transitions in a periodic one-dimensional Bose gas: II. Many-body theory
R. Kanamoto, L. D. Carr, M. Ueda
We show that quantum solitons in the Lieb-Liniger Hamiltonian are precisely the yrast states. We identify such solutions clearly with Lieb's type II excitations from weak to strong…