Semiclassical causal geodesics: Minkowski spacetime case

Author(s)
Adam Cieślik, Andrzej Góźdź, Patryk Mach, Aleksandra Pȩdrak, Włodzimierz Piechocki
Abstract

We use an integral quantization model based on the Heisenberg–Weyl group to describe the motion of a spinless particle in the Minkowski background spacetime. This work is a sequel to a previous paper, devoted to mathematical aspects of our model: construction of the space of coherent states and properties of elementary observables. We compute transition amplitudes corresponding to the free motion of a particle between two coherent states. These amplitudes are then used to model quantum random walks of free relativistic particles. Our quantization scheme allows us to recover interference patterns occurring in a standard double-slit experiment, known from the classical approach. This result is obtained by modeling the slits in terms of eigenstates of the position operator and computing transition amplitudes between position and coherent states. We design our model in a way which allows for a future generalization to a semiclassical quantization of the geodesic motion in curved spacetimes.

Organisation(s)
Gravitational Physics
External organisation(s)
Jagiellonian University in Krakow, Marie Curie-Sklodowska University, National Centre for Nuclear Research (NCBJ)
Journal
European Physical Journal C
Volume
85
No. of pages
17
ISSN
1434-6044
DOI
https://doi.org/10.48550/arXiv.2504.11828
Publication date
10-2025
Peer reviewed
Yes
Austrian Fields of Science 2012
103028 Theory of relativity, 103036 Theoretical physics
ASJC Scopus subject areas
Engineering (miscellaneous), Physics and Astronomy (miscellaneous)
Portal url
https://ucrisportal.univie.ac.at/en/publications/08152866-5812-4f16-8946-6a553e85a6c9