Single Molecule Spectroscopy as a possible tool to study the electric field in superconductors

TL;DR

This paper explores using single molecule spectroscopy to detect electric fields and charge distributions in superconductors, particularly around vortex lines and phase boundaries, offering a novel experimental approach.

Contribution

It proposes SMS as a new method to study electric fields and charges in superconductors, especially near vortex lines and phase boundaries.

Findings

SMS can detect electric charge associated with vortex lines.

Electric fields are expected at boundaries between normal and superconducting regions.

SMS could be used to study these electric effects experimentally.

Abstract

We discuss the influence of the superconducting transition in a film on the fluorescence spectrum of a single molecule located nearby. We show that single molecule spectroscopy (SMS) should be an appropriate tool to detect the electric charge associated with a vortex line. Also we argue that an electric field must appear at the boundaries between normal and superconducting regions of the intermediate phase and SMS could be useful to study this effect.