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Abstract
We apply a kinetic model to predict the existence of an instability mechanism in elongated Bose-Einstein condensates. Our kinetic description, based on the Wigner formalism, is employed to highlight the existence of unstable Bogoliubov waves that may be excited in the counterpropagation configuration. We identify a dimensionless parameter, the Mach number at T=0, that tunes different regimes of stability. We also estimate the magnitude of the main parameters at which two-stream instability is expected to be observed under typical experimental conditions.
Original language | English |
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Article number | 065601 |
Number of pages | 4 |
Journal | Physical Review A |
Volume | 79 |
Issue number | 6 |
DOIs | |
Publication status | Published - 2 Jun 2009 |
Keywords
- bose-einstein condensation
- quantum entanglement
- wave functions
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Dive into the research topics of 'Two-stream instability in quasi-one-dimensional Bose-Einstein condensates'. Together they form a unique fingerprint.Projects
- 1 Finished
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Cooling of Atoms in Optical cavaties by Collective Dynamics
Robb, G. (Principal Investigator)
EPSRC (Engineering and Physical Sciences Research Council)
1/10/06 → 31/12/09
Project: Research