Time dispersion in quantum electrodynamics
| Autor: | Ashmead, John |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | J. Phys.: Conf. Ser. 2482 012023 (2023) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1088/1742-6596/2482/1/012023 |
| Popis: | If we use the path integral approach, we can write quantum electrodynamics (QED) in a way that is manifestly relativistic. However the path integrals are confined to paths that are on mass-shell. What happens if we extend QED by computing the path integrals over all paths in energy momentum space, not only those on mass-shell? We use the requirement of covariance to do this in an unambiguous way. This gives a QED where the time/energy components appear in a way that is manifestly parallel to the space/momentum components: we have dispersion in time, entanglement in time, full equivalence of the Heisenberg uncertainty principle (HUP) in time to the HUP in space, and so on. Entanglement in time has the welcome side effect of eliminating the ultraviolet divergences. We recover standard QED in the long time limit. We predict effects at scales of attoseconds. With recent developments in attosecond physics and in quantum computing, these effects should be detectable. Since the predictions are unambiguous and testable the approach is falsifiable. Falsification would sharpen our understanding of the role of time in QED. Confirmation would have significant implications for attosecond physics, quantum computing and communications, and quantum grav Comment: Presented as a talk on 6/6/2022 at the International Association for Relativistic Dynamics 2022 Conference; submitted on 10/30/2022 to the associated Journal of Physics: Conference Series: Proceedings of IARD 2022; accepted on 1/28/2023. Ten figures, 116 references |
| Databáze: | arXiv |
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