Oscillations and decay of superfluid currents in a one-dimensional Bose gas on a ring
Quantum Gases
2019-11-21 v2
Abstract
We study the time evolution of a supercurrent imprinted on a one-dimensional ring of interacting bosons in the presence of a defect created by a localized barrier. Depending on interaction strength and temperature, we identify various dynamical regimes where the current oscillates, is self-trapped or decays with time. We show that the dynamics are captured by a dual Josephson model and involve phase slips of thermal or quantum nature.
Keywords
Cite
@article{arxiv.1903.09229,
title = {Oscillations and decay of superfluid currents in a one-dimensional Bose gas on a ring},
author = {Juan Polo and Romain Dubessy and Paolo Pedri and Helene Perrin and Anna Minguzzi},
journal= {arXiv preprint arXiv:1903.09229},
year = {2019}
}
Comments
10 pages, 3 figures