On the heat transfer across a vacuum gap mediated by Casimir force
Mesoscale and Nanoscale Physics
2020-09-28 v1 Quantum Physics
Abstract
Following a recent report on experiments it has been claimed that a phonon heat transfer through a vacuum gap between two solids due to quantum fluctuations had been measured. Here we make a theoretical analyzis of this mechanism and demonstrate that the Casimir force driven heat flux is at least 15 orders of magnitude smaller than the near-field heat flux between two solids at any given separating distance. Moreover, we provide compelling arguments that the measures reported are no more and no less a measure of the virtual temperatures of vibrating modes which does not allow an access to the Casimir force driven heat flux.
Cite
@article{arxiv.2003.00760,
title = {On the heat transfer across a vacuum gap mediated by Casimir force},
author = {Svend-Age Biehs and Achim Kittel and Philippe Ben-Abdallah},
journal= {arXiv preprint arXiv:2003.00760},
year = {2020}
}