Abstract
We study the dynamics of a vortex in a quasi two-dimensional Bose gas consisting of light-matter coupled atoms forming two-component pseudo spins. The gas is subject to a density dependent gauge potential, hence governed by an interacting gauge theory, which stems from a collisionally induced detuning between the incident laser frequency and the atomic energy levels. This provides a back-action between the synthetic gauge potential and the matter field. A Lagrangian approach is used to derive an expression for the force acting on a vortex in such a gas. We discuss the similarities between this force and the one predicted by Iordanskii, Lifshitz and Pitaevskii when scattering between a superfluid vortex and the thermal component is taken into account.
Highlights
Transport of electrons is at the heart of our understanding and everyday usage of electronic devices
It has been shown that an optically addressed Bose–Einstein condensates (BECs) governed by an interacting gauge theory [1] can have a chiral nature where the strength and even the sign of the nonlinearity depends on the direction of the superfluid flow
In this paper we will study the motion of a vortex in a superfluid which is subject to a density dependent gauge potential
Summary
We study the dynamics of a vortex in a quasi two-dimensional Bose gas consisting of light-matter licence. Any further distribution of this work must maintain potential, governed by an interacting gauge theory, which stems from a collisionally induced attribution to the detuning between the incident laser frequency and the atomic energy levels. This provides a backauthor(s) and the title of the work, journal citation action between the synthetic gauge potential and the matter field. Derive an expression for the force acting on a vortex in such a gas. We discuss the similarities between this force and the one predicted by Iordanskii, Lifshitz and Pitaevskii when scattering between a superfluid vortex and the thermal component is taken into account
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