Coherence vortices in one spatial dimension

TL;DR

This paper explores coherence vortices, which are topological defects in quantum coherence, demonstrating their presence in one-dimensional systems and discussing their physical significance and potential experimental realization.

Contribution

It introduces the concept of coherence vortices in one-dimensional quantum systems and provides a model demonstrating their lattice structures and physical implications.

Findings

Lattices of coherence vortices can exist in one-dimensional quantum systems.

Coherence vortices are associated with points where quantum coherence is uncorrelated.

Proposes experimental methods to observe coherence vortices.

Abstract

Coherence vortices are screw-type topological defects in the phase of Glauber's two-point degree of quantum coherence, associated with pairs of spatial points at which an ensemble-averaged stochastic quantum field is uncorrelated. Coherence vortices may be present in systems whose dimensionality is too low to support spatial vortices. We exhibit lattices of such quantum-coherence phase defects for a one-dimensional model quantum system. We discuss the physical meaning of coherence vortices and propose how they may be realized experimentally.