Oscillating Solitons and AC Josephson Effect in Ferromagnetic Bose-Bose Mixtures
arXiv:2209.11536 · doi:10.1103/PhysRevLett.130.220403
Abstract
Close to the demixing transition, the degree of freedom associated to relative density fluctuations of a two-component Bose-Einstein condensate is described by a non-dissipative Landau-Lifshitz equation. In the quasi one-dimensional weakly immiscible case, this mapping surprisingly predicts that a dark-bright soliton should oscillate when subject to a constant force favoring separation of the two components. We propose a realistic experimental implementation of this phenomenon which we interpret as a spin-Josephson effect in the presence of a movable barrier.
10 pages, 5 figures
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Cited by in corpus (9)
- Thouless pumping and trapping of two-component gap solitons
- Bloch Oscillations of a Soliton in a 1D Quantum Fluid
- Self-Adapted Josephson Oscillation of Dark-Bright Solitons under Constant Forces
- Measurement of the -wave scattering length between metastable helium isotopes
- Motion of ferrodark solitons in trapped superfluids: spin corrections and emergent oscillators
- Bloch oscillations of a mobile impurity in a one-dimensional Bose gas
- Coarsening of binary Bose superfluids: an effective theory
- Bi-Josephson Effect in a Driven-Dissipative Supersolid
- Critical speed of a binary superfluid of light