Fast mode of rotating atoms in one-dimensional lattice rings

Details Fast mode of rotating atoms in one-dimensional lattice rings Fast mode of rotating atoms in one-dimensional lattice rings

2007-06-11

arxiv.org/abs/0706.1470v1

Physics

Quantum Physics

4 pages, 5 figures

Scientific paper

10.1103/PhysRevA.76.033619

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.

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