Bose-Einstein condensates in 2D with time-periodic scattering length
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Data
2004-01-01
Autores
Abdullaev, F. K.
Caputo, J. G.
Kraenkel, Roberto André [UNESP]
Malomed, B. A.
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Kluwer Academic/plenum Publ
Resumo
We discuss two-dimensional Bose-Einstein Condensates (BEC) under time-periodic variation of the scattering length. In particular we argue that for high-frequency variation there exist stable self-confined condensates without an external trap, when the do component of the scattering length is negative. Our results are based on a variational approximation, on direct averaging of the Gross-Pitaevskii equation and on numerical simulations.
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Journal of Low Temperature Physics. New York: Kluwer Academic/plenum Publ, v. 134, n. 1-2, p. 671-676, 2004.