7 papers
Momentum distribution of a Fermi gas of atoms in the BCS-BEC crossover
C. A. Regal, M. Greiner, S. Giorgini +2
We observe dramatic changes in the atomic momentum distribution of a Fermi gas in the region of the BCS-BEC crossover. We study the shape of the momentum distribution and the kinet…
Macroscopic quantum tunnelling of Bose-Einstein condensates in a finite potential well
L. D. Carr, M. J. Holland, B. A. Malomed
Bose-Einstein condensates are studied in a potential of finite depth which supports both bound and quasi-bound states. This potential, which is harmonic for small radii and decays…
Quantum phase transitions in the Fermi-Bose Hubbard model
L. D. Carr, M. J. Holland
We propose a multi-band Fermi-Bose Hubbard model with on-site fermion-boson conversion and general filling factor in three dimensions. Such a Hamiltonian models an atomic Fermi gas…
Nonlinear Band Structure in Bose Einstein Condensates: The Nonlinear Schrödinger Equation with a Kronig-Penney Potential
B. T. Seaman, L. D. Carr, M. J. Holland
All Bloch states of the mean field of a Bose-Einstein condensate in the presence of a one dimensional lattice of impurities are presented in closed analytic form. The band structur…
Effect of a potential step or impurity on the Bose-Einstein condensate mean field
B. T. Seaman, L. D. Carr, M. J. Holland
The full set of stationary states of the mean field of a Bose-Einstein condensate in the presence of a potential step or point-like impurity are presented in closed analytic form.…
Resonant formation of strongly correlated paired states in rotating Bose gases
S. G. Bhongale, J. N. Milstein, M. J. Holland
We propose increasing the fractional quantum Hall gap of a rapidly rotating Bose gas by increasing the interatomic interactions via a Feshbach resonance. The generation of molecule…