Anomalous oscillations of dark solitons in trapped dipolar condensates

Abstract

Thanks to their immense purity and controllability, dipolar Bose-Einstein condensates are an exemplar for studying fundamental non-local nonlinear physics. Here we show that a family of fundamental nonlinear waves - the dark solitons - are supported in trapped quasi-one-dimensional dipolar condensates and within reach of current experiments. Remarkably, the oscillation frequency of the soliton is strongly dependent on the atomic interactions, in stark contrast to the non-dipolar case. The failure of a particle analogy, so successful for dark solitons in general, to account for this behaviour implies that these structures are inherently extended and non-particle-like. These highly-sensitive waves may act as mesoscopic probes of the underlying quantum matter field.

6 pages, 4 figures

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Cited by in corpus (10)

• Many-Body Dissipative Flow of a Confined Scalar Bose-Einstein Condensate Driven by a Gaussian Impurity
• Quantum droplets of quasi-one-dimensional dipolar Bose-Einstein condensates
• Probing quasi-integrability of the Gross-Pitaevskii equation in a harmonic-oscillator potential
• Phase engineering of chirped rogue waves in Bose-Einstein condensates with a variable scattering length in an expulsive potential
• Dynamics of interacting dark soliton stripes
• Weakly bound solitons and two-soliton molecules in dipolar Bose-Einstein condensates
• Signatures of rigidity and second sound in dipolar supersolids
• Breakdown of the mean field for dark solitons of dipolar bosons in a one-dimensional harmonic trap
• Magnetic soliton molecules in binary condensates
• Roton-mediated soliton bound states in binary dipolar condensates