{ "id": "1207.2325", "version": "v2", "published": "2012-07-10T12:19:13.000Z", "updated": "2012-08-15T13:07:19.000Z", "title": "Lorentz violation, Gravity, Dissipation and Holography", "authors": [ "Elias Kiritsis" ], "comment": "LateX, 51 pages, 9 figures. (v2) References and comments added. Misprints corrected", "categories": [ "hep-th", "astro-ph.HE", "gr-qc", "hep-ph" ], "abstract": "We reconsider Lorentz Violation (LV) at the fundamental level. We show that Lorentz Violation is intimately connected with gravity and that LV couplings in QFT must always be fields in a gravitational sector. Diffeomorphism invariance must be intact and the LV couplings transform as tensors under coordinate/frame changes. Therefore searching for LV is one of the most sensitive ways of looking for new physics, either new interactions or modifications of known ones. Energy dissipation/Cerenkov radiation is shown to be a generic feature of LV in QFT. A general computation is done in strongly coupled theories with gravity duals. It is shown that in scale invariant regimes, the energy dissipation rate depends non-triviallly on two characteristic exponents, the Lifshitz exponent and the hyperscaling violation exponent.", "revisions": [ { "version": "v2", "updated": "2012-08-15T13:07:19.000Z" } ], "analyses": { "keywords": [ "holography", "lv couplings transform", "energy dissipation rate depends", "energy dissipation/cerenkov radiation", "reconsider lorentz violation" ], "tags": [ "journal article" ], "publication": { "doi": "10.1007/JHEP01(2013)030", "journal": "Journal of High Energy Physics", "year": 2013, "month": "Jan", "volume": 2013, "pages": 30 }, "note": { "typesetting": "LaTeX", "pages": 51, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1121851, "adsabs": "2013JHEP...01..030K" } } }