Supercurrent Stability in a Quasi-1D Weakly Interacting Bose Gas
Yu. Kagan, N. V. Prokof'ev, B. V. Svistunov
Abstract
We discuss a possibility of observing superfluid phenomena in a quasi-1D weakly interacting Bose gas at finite temperatures. The weakness of interaction in combination with generic properties of 1D liquids can result in a situation when relaxational time of supercurrent is essentially larger than the time of experimental observation, and the behavior of the system is indistinguishable from that of a genuine superfluid.
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