Abstract
The Gross-Pitaevski equation modified through the inclusion of a term accounting for the nonlocality of interatomic interaction was used to demonstrate the occurrence of extremely narrow two-and three-dimensional solitonic states in atomic Bose-Einstein condensates. The estimates of the sizes of these states gave a value of ∼ 20–60 nm (atomic “needles” and “bullets”) for lithium atoms. The soliton lifetimes caused by two-and three-particle collisions were estimated. The limiting possibilities of the formation of nanostructures using needles and bullets were compared with the possibilities of other nanolithographic methods.
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Translated from Pis’ma v Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 77, No. 2, 2003, pp. 89–92.
Original Russian Text Copyright © 2003 by Rosanov, Rozhdestvenski\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \), Smirnov, Fedorov.
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Rosanov, N.N., Rozhdestvenskii, Y.V., Smirnov, V.A. et al. Atomic “needles” and “bullets” in Bose-Einstein condensate and the formation of nanosized structures. Jetp Lett. 77, 84–87 (2003). https://doi.org/10.1134/1.1564225
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DOI: https://doi.org/10.1134/1.1564225