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Lookup NU author(s): Professor Nikolaos Proukakis,
Professor Carlo Barenghi
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A dark soliton oscillating in an elongated harmonically confined atomic Bose-Einstein condensate continuously exchanges energy with the sound field. Periodic optical paddles are employed to controllably enhance the sound density and transfer energy to the soliton, analogous to parametric driving. In the absence of damping, the amplitude of the soliton oscillations can be dramatically reduced, whereas with damping, a driven soliton equilibrates as a stable soliton with lower energy, thereby extending the soliton lifetime up to the lifetime of the condensate.
Author(s): Parker NG, Proukakis NP, Barenghi CF, Adams CS
Publication type: Article
Publication status: Published
Journal: Physical Review Letters
ISSN (print): 0031-9007
ISSN (electronic): 1079-7114
Publisher: American Physical Society
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