Quantum global vortex strings in a background field

TL;DR

This paper explores how background fields influence quantum vortex strings within the Kalb-Ramond framework, deriving explicit correlation functions and operators, with potential applications in superfluid and Bose-Einstein condensate physics.

Contribution

It introduces a necessary background field into the Kalb-Ramond theory to accurately describe quantum vortex strings and derives explicit forms of correlation functions and creation operators.

Findings

Background field modifies vortex string correlation functions.

Explicit quantum vortex creation operator derived.

Potential applications in superfluids and BECs discussed.

Abstract

We consider quantum global vortex string correlation functions, within the Kalb-Ramond framework, in the presence of a background field-strength tensor and investigate the conditions under which this yields a nontrivial contribution to those correlation functions. We show that a background field must be supplemented to the Kalb-Ramond theory, in order to correctly describe the quantum properties of the vortex strings. The explicit form of this background field and the associated quantum vortex string correlation function are derived. The complete expression for the quantum vortex creation operator is explicitly obtained. We discuss the potential applicability of our results in the physics of superfluids and rotating Bose-Einstein condensates.