{ "id": "1911.03099", "version": "v1", "published": "2019-11-08T07:22:11.000Z", "updated": "2019-11-08T07:22:11.000Z", "title": "On the Lévy-Leblond-Newton equation and its symmetries: a geometric view", "authors": [ "Serge Lazzarini", "Loïc Marsot" ], "comment": "24 pages, 2 figures", "categories": [ "math-ph", "math.MP" ], "abstract": "The L\\'evy-Leblond-Newton (LLN) equation for non-relativistic fermions with a gravitational self-interaction is reformulated within the framework of a Bargmann structure over a $(n+1)$-dimensional Newton-Cartan (NC) spacetime. The Schr\\\"odinger-Newton (SN) group, introduced in [21] as the maximal group of invariance of the SN equation, turns out to be also the group of conformal Bargmann automorphisms preserving the coupled L\\'evy-Leblond and NC gravitational field equations. Within the Bargmann geometry a generalization of the LLN equation is provided as well. The canonical projective unitary representation of the SN group on 4-component spinors is also presented. In particular, when restricted to dilations, the value of the dynamical exponent $z=(n+2)/3$ is recovered as previously derived in [21] for the SN equation. Subsequently, conserved quantities associated to the (generalized) LLN equation are also exhibited.", "revisions": [ { "version": "v1", "updated": "2019-11-08T07:22:11.000Z" } ], "analyses": { "keywords": [ "geometric view", "lévy-leblond-newton equation", "lln equation", "symmetries", "nc gravitational field equations" ], "note": { "typesetting": "TeX", "pages": 24, "language": "en", "license": "arXiv", "status": "editable" } } }