Physics – Condensed Matter – Other Condensed Matter
Scientific paper
2005-10-12
Europh. Lett., 76 (2006) 215
Physics
Condensed Matter
Other Condensed Matter
7 pages, 3 figures, revised version, to appear in Europh. Lett
Scientific paper
10.1209/epl/i2006-10264-8
We consider small systems of bosonic atoms rotating in a toroidal trap. Using
the method of exact numerical diagonalization of the many-body Hamiltonian, we
examine the transition from the Bose-Einstein condensed state to the
Tonks-Girardeau state. The system supports persistent currents in a wide range
between the two limits, even in the absence of Bose-Einstein condensation.
Kavoulakis G. M.
Ogren Magnus
Reimann Stephanie M.
Yu Yue
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