Simultaneity and the Concept of `Particle'
| dc.creator | Dolby, Carl E. | |
| dc.date | 2003-05-27 | |
| dc.date.accessioned | 2026-07-07T03:27:52Z | |
| dc.date.available | 2026-07-07T03:27:52Z | |
| dc.description | The history of the particle concept is briefly reviewed, with particular emphasis on the `foliation dependence' of many particle creation models, and the possible connection between our notion of particle and our notion of simultaneity. It is argued that the concept of `radar time' (originally introduced by Sir Hermann Bondi in his work on k-calculus) provides a satisfactory concept of `simultaneity' for observers in curved spacetimes. This is used to propose an observer-dependent particle interpretation, applicable to an arbitrary observer, depending solely on that observers motion and not on a choice of coordinates or gauge. This definition is illustrated with application to non-inertial observers and simple cosmologies, demonstrating its generality and its consistency with known cases. | |
| dc.description | Submitted to World Scientific. To appear in proceedings of the Venice Conference on Time and Matter, August 2002 | |
| dc.identifier | https://arxiv.org/abs/gr-qc/0305097 | |
| dc.identifier | http://arxiv.org/abs/gr-qc/0305097 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/34606 | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Simultaneity and the Concept of `Particle' | |
| dc.type | text |