Superfluidity of the 1D Bose gas
arXiv:cond-mat/0311601 · doi:10.1016/j.crhy.2004.01.007
Abstract
We have investigated the superfluid properties of a ring of weakly interacting and degenerate 1D Bose gas at thermal equilibrium with a rotating vessel. The conventional definition of superfluidity predicts that the gas has a significant superfluid fraction only in the Bose condensed regime. In the opposite regime, it is found that a superfluid behaviour can still be identified when the probability distribution of the total momentum of the gas has a multi-peaked structure, revealing unambiguously the existence of `superfluid' supercurrent states that did not show up in the conventional definition of superfluidity.
arXiv commentsecond revised version
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Cited by in corpus (10)
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- Dynamically controlled toroidal and ring-shaped magnetic traps
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- A semi-classical field method for the equilibrium Bose gas and application to thermal vortices in two dimensions
- Mean-field phase diagram of the 1-D Bose gas in a disorder potential
- Dynamical thermalization of Bose-Einstein condensate in Bunimovich stadium
- Non-equilibrium and local detection of the normal fraction of a trapped two-dimensional Bose gas
- Simulating and detecting artificial magnetic fields in trapped atoms
- Superfluid fraction of interacting bosonic gases
- Moving perturbation in a one-dimensional Fermi gas