Quantum fluctuations in coupled dark solitons in trapped Bose-Einstein condensates

Abstract

We show that the quantum fluctuations associated with the Bogoliubov quasiparticle vacuum can be strongly concentrated inside dark solitons in a trapped Bose Einstein condensate. We identify a finite number of anomalous modes that are responsible for such quantum phenomena. The fluctuations in these anomalous modes correspond to the `zero-point' oscillations in coupled dark solitons.

4 pages, 3 figures

References in corpus (1)

• Dark-Bright Solitons in Inhomogeneous Bose-Einstein Condensates

Cited by in corpus (8)

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• Fluctuation and interaction induced instability of dark solitons in single and binary condensates
• Stationary states of a nonlinear Schrödinger lattice with a harmonic trap
• Quantum lattice solitons in ultracold bosons near Feshbach resonance