Resolution of the problem of time in quantum gravity
| dc.creator | Larsson, T. A. | |
| dc.date | 2001-10-18 | |
| dc.date | 2003-06-17 | |
| dc.date.accessioned | 2026-07-07T04:12:32Z | |
| dc.date.available | 2026-07-07T04:12:32Z | |
| dc.description | The metric determines the casual structure of spacetime, but in quantum gravity it is also a dynamical field which must be quantized using this causal structure; this is the famous problem of time. A radical resolution of this paradox is proposed: remove the concept of space-like separation entirely. This can be done by describing all fields in terms on p-jets, living on the observer's trajectory; all points on the trajectory have time-like separations. Such a description is necessary to construct well-defined representations the N-dimensional generalization of the Virasoro algebra Vir(N); this is the natural quantum extension of vect(N), which is the correct symmetry algebra of general relativity in N dimensions. The limit p -> oo, necessary for a field theory interpretation, only exists if N = 4 and there are three fermions for every two bosons, a relation that is satisfied in the standard model coupled to gravity. | |
| dc.description | Name of paper changed since the term "causality paradox" refers to the problem of time. Material on the generalization of the Virasoro algebra beyond one dimension expanded | |
| dc.identifier | https://arxiv.org/abs/hep-th/0110166 | |
| dc.identifier | http://arxiv.org/abs/hep-th/0110166 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/50934 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Resolution of the problem of time in quantum gravity | |
| dc.type | text |