{ "id": "1806.05156", "version": "v1", "published": "2018-06-13T17:30:37.000Z", "updated": "2018-06-13T17:30:37.000Z", "title": "Laplacian spectrum on a nilmanifold, truncations and effective theories", "authors": [ "David Andriot", "Dimitrios Tsimpis" ], "categories": [ "hep-th" ], "abstract": "Motivated by low energy effective theories arising from compactification on curved manifolds, we determine the complete spectrum of the Laplacian operator on the three-dimensional Heisenberg nilmanifold. We first use the result to construct a finite set of forms leading to an N=2 gauged supergravity, upon reduction on manifolds with SU(3) structure. Secondly, we show that in a certain geometrical limit the spectrum is truncated to the light modes, which turn out to be left-invariant forms of the nilmanifold. We also study the behavior of the towers of modes at different points in field space, in connection with the swampland distance conjecture.", "revisions": [ { "version": "v1", "updated": "2018-06-13T17:30:37.000Z" } ], "analyses": { "keywords": [ "laplacian spectrum", "truncations", "three-dimensional heisenberg nilmanifold", "swampland distance conjecture", "low energy effective theories arising" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }