Rotating Bose-Einstein condensates with attractive interactions
نویسندگان
چکیده
منابع مشابه
Effectively attractive Bose-Einstein condensates in a rotating toroidal trap
We examine an effectively attractive quasi-one-dimensional Bose-Einstein condensate of atoms confined in a rotating toroidal trap, as the magnitude of the coupling constant and the rotational frequency are varied. Using both a variational mean-field approach, as well as a diagonalization technique, we identify the phase diagram between a uniform and a localized state and we describe the system ...
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The dynamical instabilities and ensuing dynamics of singly and doubly quantized vortex states of BoseEinstein condensates with attractive interactions are investigated using full three-dimensional numerical simulations of the Gross-Pitaevskii equation. With increasing the strength of attractive interactions, a series of dynamical instabilities such as quadrupole, dipole, octupole, and monopole ...
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C. Huepe,1 S. Métens,1 G. Dewel,2 P. Borckmans,2 and M. E. Brachet1 1Laboratoire de Physique Statistique de l’Ecole Normale Supérieure, associé au CNRS et aux Universités Paris 6 et 7, 24 Rue Lhomond, 75231 Paris Cedex 05, France 2Service de Chimie-Physique and Center for Nonlinear Phenomena and Complex Systems, CP 231, Université Libre de Bruxelles, 1050 Bruxelles, Belgium (Received 17 August ...
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Experimental observation of Bose-Einstein condensation ~BEC! in ultracold atomic clouds @1# has stimulated a new direction in the study of macroscopic quantum phenomena. Basically, the interaction between two confined bosons in a condensate is determined by the s-wave scattering length a and it can be either repulsive (a.0) or attractive (a,0). Although first BEC experiments were commonly reali...
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The self-similar collapse of 3D and quasi-2D atom condensates with negative scattering length is examined. 3D condensates are shown to blow up following the scenario of weak collapse: The inner core of the condensate diverges with an almost zero particle number, while its tail distribution spreads out to large distances with a constant density profile. For this case, the 3-body recombination ar...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2004
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.70.043603