{ "id": "2003.00760", "version": "v1", "published": "2020-03-02T11:02:36.000Z", "updated": "2020-03-02T11:02:36.000Z", "title": "On the heat transfer across a vacuum gap mediated by Casimir force", "authors": [ "Svend-Age Biehs", "Achim Kittel", "Philippe Ben-Abdallah" ], "categories": [ "cond-mat.mes-hall", "quant-ph" ], "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.", "revisions": [ { "version": "v1", "updated": "2020-03-02T11:02:36.000Z" } ], "analyses": { "keywords": [ "vacuum gap", "casimir force driven heat flux", "phonon heat transfer", "near-field heat flux", "quantum fluctuations" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }