Bosons on a rotating ring with free boundary conditions

TL;DR

This paper studies a system of interacting bosons on a rotating ring with free boundary conditions, analyzing how the ground state profile depends on rotation and barrier properties using effective action calculations.

Contribution

It introduces a novel approach by modeling the barrier with general boundary conditions and constraining interactions in field space, providing new insights into bosonic systems on rotating rings.

Findings

Ground state profile varies with rotational velocity.

Barrier properties significantly influence the system's behavior.

Effective action approach reveals sensitivity to boundary conditions.

Abstract

We consider a system of interacting non-relativistic bosons confined to a one-dimensional ring in the presence of a synthetic gauge field induced by a rotating barrier. Interactions are introduced as a constraint in field space, and the barrier is modeled by general boundary conditions. Within this setup, we compute the effective action and investigate the profile of the ground state and its sensitivity from rotational velocity and the properties of the barrier.