Pattanayak, Arjendu K.Gammal, ArnaldoSackett, Charles A.Hulet, Randall G.2015-03-302015-03-302001Pattanayak, Arjendu K., Gammal, Arnaldo, Sackett, Charles A., et al.. "Stabilizing an attractive Bose-Einstein condensate by driving a surface collective mode." <i>Physical Review A,</i> 63, no. 3 (2001) American Physical Society: 33604. http://dx.doi.org/10.1103/PhysRevA.63.033604.https://hdl.handle.net/1911/79422Bose-Einstein condensates with attractive interatomic interactions undergo collective collapse beyond a critical number. We show theoretically that if the low-lying collective modes of the condensate are excited, the radial breathing mode further destabilizes the condensate. Remarkably, excitation of the quadrupolar surface mode causes the condensate to become more stable, imparting quasiangular momentum to it. A significantly larger number of atoms may then occupy the condensate. Efforts are under way for the experimental realization of these effects.engArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.Journal articlehttp://dx.doi.org/10.1103/PhysRevA.63.033604