Vortex vs spinning string: Iordanskii force and gravitational Aharonov-Bohm effect

TL;DR

This paper explores the gravitational Aharonov-Bohm effect and Iordanskii force in the context of spinning cosmic strings, revealing analogies with vortex dynamics in superfluids.

Contribution

It establishes a connection between gravitational effects on cosmic strings and vortex forces in superfluid physics, providing new insights into cosmic string dynamics.

Findings

Identification of the gravitational Aharonov-Bohm effect as a transverse force on spinning strings

Analogy between cosmic string forces and vortex forces in superfluids

Implications for cosmic string motion in matter backgrounds

Abstract

We discuss the transverse force acting on the spinning cosmic string, moving in the background matter. It comes from the gravitational Aharonov-Bohm effect and corresponds to the Iordanskii force acting on the vortex in superfluids, when the vortex moves with respect to the normal component of the liquid.