# Phase slips and vortex dynamics in Josephson oscillations between Bose-Einstein condensates

@article{Abad2014PhaseSA, title={Phase slips and vortex dynamics in Josephson oscillations between Bose-Einstein condensates}, author={Marta Abad and M. Guilleumas and Ricardo Mayol and Francesco Piazza and Dora M. Jezek and Augusto Smerzi}, journal={Europhysics Letters}, year={2014}, volume={109} }

We study the relation between Josephson dynamics and topological excitations in a dilute Bose-Einstein condensate confined in a double-well trap. We show that the phase slips responsible for the self-trapping regime are created by vortex rings entering and annihilating inside the weak-link region or created at the center of the barrier and expanding outside the system. Large amplitude oscillations just before the onset of self-trapping are also strictly connected with the dynamics of vortex…

## 13 Citations

Critical Transport and Vortex Dynamics in a Thin Atomic Josephson Junction.

- PhysicsPhysical review letters
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This work unambiguously link dissipation to vortex ring nucleation and dynamics, demonstrating that quantum phase slips are responsible for the observed resistive current.

Connecting Dissipation and Phase Slips in a Josephson Junction between Fermionic Superfluids.

- PhysicsPhysical review letters
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We study the emergence of dissipation in an atomic Josephson junction between weakly coupled superfluid Fermi gases. We find that vortex-induced phase slippage is the dominant microscopic source of…

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- Physics
- 2021

We study the dynamics of one-dimensional bosons trapped in a box potential, in the presence of a barrier creating a tunable weak-link, thus realizing a one dimensional Bose Josephson junction. By…

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- PhysicsPhysical Review A
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We study the dynamics of one-dimensional bosons trapped in a box potential, in the presence of a barrier creating a tunable weak-link, thus realizing a one dimensional Bose-Josephson junction. By…

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- PhysicsNew Journal of Physics
- 2020

We provide a complete study of the phase diagram characterising the distinct dynamical regimes emerging in a three-dimensional Josephson junction in an ultracold quantum gas. Considering trapped…

Breaking of Josephson junction oscillations and onset of quantum turbulence in Bose–Einstein condensates

- PhysicsJournal of Physics A: Mathematical and Theoretical
- 2020

We analyse the formation and the dynamics of quantum turbulence in a two-dimensional Bose–Einstein condensate with a Josephson junction barrier modeled using the Gross–Pitaevskii equation. We show…

Coherent Quantum Phase Slip in two-component bosonic Atomtronic Circuits

- Physics
- 2015

Coherent quantum phase slip consists in the coherent transfer of vortices in superfluids. We investigate this phenomenon in two miscible coherently coupled components of a spinor Bose gas confined in…

Effective two-mode model in Bose-Einstein condensates versus Gross-Pitaevskii simulations

- Physics
- 2017

Abstract
We study the dynamics of three-dimensional Bose-Einstein condensates confined by double-well potentials using a two-mode (TM) model with an effective on-site interaction energy parameter.…

Coherent and dissipative transport in a Josephson junction between fermionic superfluids of 6 Li atoms

- Physics
- 2018

Quantum systems out of equilibrium offer the possibility of understanding intriguing and challenging problems in modern physics. Studying transport properties is not only valuable to unveil…

Josephson effect in fermionic superfluids across the BEC-BCS crossover

- PhysicsScience
- 2015

It is shown that the relative population and phase are canonically conjugate dynamical variables throughout the crossover from the molecular Bose-Einstein condensate (BEC) to the Bardeen-Cooper-Schrieffer (BCS) superfluid regime and the dynamics of the superfluids become dissipative, which is ascribed to the propagation of vortices through the superfluid bulk.

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