New dynamical degrees of freedom from invertible transformations

0574636 - FZÚ 2024 RIV DE eng J - Journal Article
Jiroušek, P. - Shimada, K. - Vikman, Alexander - Yamaguchi, M.
New dynamical degrees of freedom from invertible transformations.
Journal of High Energy Physics. Roč. 2023, č. 7 (2023), č. článku 154. ISSN 1029-8479. E-ISSN 1029-8479
R&D Projects: GA ČR(CZ) GA20-28525S
Grant - others:AV ČR(CZ) JSPS-21-12
Program: Bilaterální spolupráce
Institutional support: RVO:68378271
Keywords : modified gravity * symmetry * disformal transformations
OECD category: Particles and field physics
Impact factor: 5.4, year: 2022
Method of publishing: Open access

We show that invertible transformations of dynamical variables can change the number of dynamical degrees of freedom. Moreover, even in cases when the number of dynamical degrees of freedom remains unchanged, the resulting dynamics can be essentially different from the one of the system prior to transformation. After giving concrete examples in point particle cases, we discuss changes in dynamics due to invertible disformal transformations of the metric in gravitational theories.
Permanent Link: https://hdl.handle.net/11104/0347982