New dynamical degrees of freedom from invertible transformations

0574636 - FZÚ 2024 RIV DE eng J - Článek v odborném periodiku
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
Grant CEP: GA ČR(CZ) GA20-28525S
Grant ostatní: AV ČR(CZ) JSPS-21-12
Program: Bilaterální spolupráce
Institucionální podpora: RVO:68378271
Klíčová slova: modified gravity * symmetry * disformal transformations
Obor OECD: Particles and field physics
Impakt faktor: 5.4, rok: 2022
Způsob publikování: 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.
Trvalý link: https://hdl.handle.net/11104/0347982