{ "id": "1203.2708", "version": "v3", "published": "2012-03-13T04:07:05.000Z", "updated": "2012-09-01T22:54:56.000Z", "title": "Renormalization Group Approach to Casimir Effect and the Attractive and Repulsive Forces in Substance", "authors": [ "Shoichi Ichinose" ], "comment": "Proceedings of International Tribology Conference (Hiroshima 2011.10.30-11.03), 20 pages, 7 figures", "categories": [ "cond-mat.mes-hall", "hep-th" ], "abstract": "Electromagnetism in substance is characterized by permittivity (dielectric constant) and permeability (magnetic permeability). They describe the substance property {\\it effectively}. We present a {\\it geometric} approach to it. Some models are presented, where the two quantities are geometrically defined. Fluctuation due to the micro dynamics (such as dipole-dipole interaction) is taken into account by the (generalized) path-integral. Free energy formula (Lifshitz 1954), for the material composed of three regions with different permittivities, is explained. Casimir energy is obtained by a new regularization using the path-integral. Attractive force or repulsive one is determined by the sign of the {\\it renormalization-group} $\\beta$-function.", "revisions": [ { "version": "v3", "updated": "2012-09-01T22:54:56.000Z" } ], "analyses": { "keywords": [ "renormalization group approach", "casimir effect", "repulsive forces", "attractive", "free energy formula" ], "tags": [ "conference paper" ], "note": { "typesetting": "TeX", "pages": 20, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1094134, "adsabs": "2012arXiv1203.2708I" } } }