Fast mode of rotating atoms in one-dimensional lattice rings

Abstract

We study the rotation of atoms in one-dimensional lattice rings. In particular, the "fast mode", where the ground state atoms rotate faster than the stirring rotating the atoms, is studied both analytically and numerically. The conditions for the transition to the fast mode are found to be very different from that in continuum rings. We argue that these transition frequencies remain unchanged for bosonic condensates described in a mean field. We show that Fermionic interaction and filling factor have a significant effect on the transition to the fast mode, and Pauli principle may suppress it altogether.

arXiv comment4 pages, 5 figures

References in corpus (20)

• Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
• Cold bosonic atoms in optical lattices
• Condensation of Pairs of Fermionic Atoms Near a Feshbach Resonance
• Vortices and Superfluidity in a Strongly Interacting Fermi Gas
• Creation of ultracold molecules from a Fermi gas of atoms
• The BCS-BEC Crossover in a Gas of Fermi Atoms with a Feshbach Resonance
• Vortex Nucleation in a Stirred Bose-Einstein Condensate
• A lattice of double wells for manipulating pairs of cold atoms
• Optical ferris wheel for ultracold atoms
• Quantum many particle systems in ring-shaped optical lattices
• Vortex patterns in a fast rotating Bose-Einstein condensate
• Structural phase transitions of vortex matter in an optical lattice
• Bose-Einstein Condensates in Rotating Lattices
• Vortex lattices in the lowest Landau level for confined Bose-Einstein condensates
• Vortex configurations of bosons in an optical lattice
• Quantum phase transitions in the Fermi-Bose Hubbard model
• Rapidly Rotating Fermi Gases
• Dressed Feshbach molecules in the BEC-BCS crossover
• Quantized Vortex States of Strongly Interacting Bosons in a Rotating Optical Lattice
• Population of closed-channel molecules in trapped Fermi gases with broad Feshbach resonances