Collisions of dark solitons in elongated Bose-Einstein condensates

S Stellmer; C Becker; P Soltan-Panahi; EM Richter; S Doerscher; M Baumert; J Kronjaeger; Kai Bongs; K Sengstock

doi:10.1103/PhysRevLett.101.120406

Collisions of dark solitons in elongated Bose-Einstein condensates

S Stellmer, C Becker, P Soltan-Panahi, EM Richter, S Doerscher, M Baumert, J Kronjaeger, Kai Bongs, K Sengstock

Physics and Astronomy

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140 Citations (Scopus)

Abstract

We present experimental data showing the head-on collision of dark solitons generated in an elongated Bose-Einstein condensate. No discernable interaction can be recorded, in full agreement with the fundamental theoretical concepts of solitons as mutually transparent quasiparticles. Our soliton generation technique allows for the creation of solitons with different depths; hence, they can be distinguished and their trajectories be followed. Simulations of the 1D-Gross-Pitaevskii equation have been performed to compare the experiment with a mean-field description.

Original language	English
Pages (from-to)	120406
Number of pages	1
Journal	Physical Review Letters
Volume	101
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevLett.101.120406
Publication status	Published - 1 Sept 2008

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10.1103/PhysRevLett.101.120406

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abstract = "We present experimental data showing the head-on collision of dark solitons generated in an elongated Bose-Einstein condensate. No discernable interaction can be recorded, in full agreement with the fundamental theoretical concepts of solitons as mutually transparent quasiparticles. Our soliton generation technique allows for the creation of solitons with different depths; hence, they can be distinguished and their trajectories be followed. Simulations of the 1D-Gross-Pitaevskii equation have been performed to compare the experiment with a mean-field description.",

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AU - Stellmer, S

AU - Becker, C

AU - Soltan-Panahi, P

AU - Richter, EM

AU - Doerscher, S

AU - Baumert, M

AU - Kronjaeger, J

AU - Bongs, Kai

AU - Sengstock, K

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AB - We present experimental data showing the head-on collision of dark solitons generated in an elongated Bose-Einstein condensate. No discernable interaction can be recorded, in full agreement with the fundamental theoretical concepts of solitons as mutually transparent quasiparticles. Our soliton generation technique allows for the creation of solitons with different depths; hence, they can be distinguished and their trajectories be followed. Simulations of the 1D-Gross-Pitaevskii equation have been performed to compare the experiment with a mean-field description.

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DO - 10.1103/PhysRevLett.101.120406

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JO - Physical Review Letters

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Collisions of dark solitons in elongated Bose-Einstein condensates

Abstract

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