Theory of superfluidity and drag force in the one-dimensional Bose gas
@article{Cherny2011TheoryOS, title={Theory of superfluidity and drag force in the one-dimensional Bose gas}, author={Alexander Yu. Cherny and Jean-S{\'e}bastien Caux and Joachim Brand}, journal={Frontiers of Physics}, year={2011}, volume={7}, pages={54-71} }
The one-dimensional Bose gas is an unusual superfluid. In contrast to higher spatial dimensions, the existence of non-classical rotational inertia is not directly linked to the dissipationless motion of infinitesimal impurities. Recently, experimental tests with ultracold atoms have begun and quantitative predictions for the drag force experienced by moving obstacles have become available. This topical review discusses the drag force obtained from linear response theory in relation to Landau’s…
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