Explaining Leibniz-equivalence as difference of non-inertial appearances: dis-solution of the Hole Argument and physical individuation of point-events
| dc.creator | Lusanna, Luca | |
| dc.creator | Pauri, Massimo | |
| dc.date | 2006-04-20 | |
| dc.date | 2007-02-08 | |
| dc.date.accessioned | 2026-07-07T07:45:15Z | |
| dc.date.available | 2026-07-07T07:45:15Z | |
| dc.description | "The last remnant of physical objectivity of space-time" is disclosed in the case of a continuous family of spatially non-compact models of general relativity (GR). The {\it physical individuation} of point-events is furnished by the intrinsic degrees of freedom of the gravitational field, (viz, the {\it Dirac observables}) that represent - as it were - the {\it ontic} part of the metric field. The physical role of the {\it epistemic} part (viz. the {\it gauge} variables) is likewise clarified as emboding the unavoidable non-inertial aspects of GR. At the end the philosophical import of the {\it Hole Argument} is substantially weakened and in fact the Argument itself dis-solved, while a specific four-dimensional {\it holistic and structuralist} view of space-time, (called {\it point-structuralism}), emerges, including elements common to the tradition of both {\it substantivalism} and {\it relationism}. The observables of our models undergo real {\it temporal change}: this gives new evidence to the fact that statements like the {\it frozen-time} character of evolution, as other ontological claims about GR, are {\it model dependent}. \medskip Forthcoming in Studies in History and Philosophy of Modern Physics | |
| dc.description | 37 pages, talk at Oxford Conference on Spacetime (2004), to appear in Studies in History and Philosophy of Modern Physics. Affiliations Corrected | |
| dc.identifier | https://arxiv.org/abs/gr-qc/0604087 | |
| dc.identifier | http://arxiv.org/abs/gr-qc/0604087 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/123473 | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.subject | Astrophysics | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Explaining Leibniz-equivalence as difference of non-inertial appearances: dis-solution of the Hole Argument and physical individuation of point-events | |
| dc.type | text |