Mossbauer effect for dark solitons in Bose-Einstein condensates
Th. Busch, J. R. Anglin
Abstract
We show that the energetic instability of dark solitons is associated with particle-like motion, and present a simple equation of motion, based on the Mössbauer effect, for dark solitons propagating in inhomogeneous Thomas-Fermi clouds. Numerical simulations support our theory. We discuss some experimental approaches.
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