Comment on: "Vortex-assisted photon count and their magnetic field dependence in single-photon superconducting detectors" by L.N. Bulaevskii, M.J. Graf and V.G. Kogan, Phys. Rev. B 85, 014505 (2012)

TL;DR

This paper critiques a previous study on vortex-assisted photon detection, highlighting model artifacts and emphasizing the need for a more accurate theoretical framework for vortex behavior in thin films.

Contribution

It clarifies misconceptions in prior work by addressing neglected issues and proposing a more consistent theory for vortex thermally-activated hopping in thin superconducting films.

Findings

Previous model artifacts led to incorrect conclusions.

Neglected issues significantly impact vortex behavior interpretation.

A more consistent theoretical approach is proposed.

Abstract

In this Comment we show that the statements made in PRB85, 014505 (2012) regarding our work (PRL 100, 227007 (2008))) are incorrect because they result from model artifacts. We address the issues neglected in PRB85, 014505 (2012) and discuss their importance for a more consistent theory of thermally-activated hoping of vortices in thin films and the interpretation of experimental data.