Physics – Condensed Matter – Quantum Gases
Scientific paper
2010-12-08
Europh. Lett., 95, (2011) 30002
Physics
Condensed Matter
Quantum Gases
Revised version, where the generality of our arguments is presented more clearly
Scientific paper
Considering a Bose-Einstein condensed gas confined in one dimension with periodic boundary conditions, we demonstrate that, very generally, solitary-wave and rotational excitations coincide. This exact equivalence allows us to establish connections between a number of effects that are present in these two problems, many of which have been studied using the mean-field approximation.
Jackson Andrew D.
Kavoulakis G. M.
Magiropoulos M.
Smyrnakis J.
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