{ "id": "1806.00430", "version": "v1", "published": "2018-06-01T16:36:20.000Z", "updated": "2018-06-01T16:36:20.000Z", "title": "Exotic Branes in Exceptional Field Theory: $E_{7(7)}$ and Beyond", "authors": [ "David S. Berman", "Edvard T. Musaev", "Ray Otsuki" ], "comment": "73 pages Latex", "categories": [ "hep-th" ], "abstract": "In recent years, it has been widely argued that the duality transformations of string and M-theory naturally imply the existence of so-called `exotic branes'---low codimension objects with highly non-perturbative tensions, scaling as $g_s^{\\alpha}$ for $\\alpha \\leq -3$. We argue that their intimate link with these duality transformations make them an ideal object of study using the general framework of Double Field Theory (DFT) and Exceptional Field Theory (EFT)---collectively referred to as ExFT. Parallel to the theme of dualities, we also stress that these theories unify known solutions in string- and M-theory into a single solution under ExFT. We argue that not only is there a natural unifying description of the lowest codimension objects, many of these exotic states require this formalism as a consistent supergravity description does not exist.", "revisions": [ { "version": "v1", "updated": "2018-06-01T16:36:20.000Z" } ], "analyses": { "keywords": [ "exceptional field theory", "exotic branes", "duality transformations", "consistent supergravity description", "lowest codimension objects" ], "note": { "typesetting": "LaTeX", "pages": 73, "language": "en", "license": "arXiv", "status": "editable" } } }