LAUSR

About LAUSR
Donate
Contact Us

Follow us:

You are not signed in:

Sign Up!


   Articles with "generalized proca" as a keyword



To bounce or not to bounce in generalized Proca theory and beyond

Sign Up to like & get
recommendations! Published in 2024 at "Journal of High Energy Physics"

DOI: 10.1007/jhep07(2025)124

Abstract: It is notoriously difficult to construct a stable non-singular bouncing cosmology that avoids all possible instabilities throughout the entire evolution of the universe. In this work, we explore whether a non-singular bounce driven by a… read more here.

Keywords: proca theory; bounce; generalized proca; non singular ... See more keywords

Particle-like solutions in the generalized SU(2) Proca theory

Sign Up to like & get
recommendations! Published in 2022 at "Journal of Cosmology and Astroparticle Physics"

DOI: 10.1088/1475-7516/2023/04/032

Abstract: The generalized SU(2) Proca theory is a vector-tensor modified gravity theory where the action is invariant under both diffeomorphisms and global internal transformations of the SU(2) group. This work constitutes the first approach to investigate… read more here.

Keywords: theory; generalized proca; like solutions; particle like ... See more keywords

Stability conditions in the generalized SU(2) Proca theory

Sign Up to like & get
recommendations! Published in 2019 at "Physical Review D"

DOI: 10.1103/physrevd.100.084048

Abstract: Under the same spirit of the Galileon-Horndeski theories and their more modern extensions, the generalized SU(2) Proca theory was built by demanding that its action may be free of the Ostrogradski's instability. Nevertheless, the theory… read more here.

Keywords: conditions generalized; theory; stability conditions; proca theory ... See more keywords

Black hole thermodynamics in generalized Proca theories

Sign Up to like & get
recommendations! Published in 2024 at "Physical Review D"

DOI: 10.1103/physrevd.110.024047

Abstract: We investigate thermodynamics of static and spherically symmetric black holes (BHs) in generalized Proca (GP) theories by applying the Iyer-Wald prescription. BH solutions in GP theories are divided into the two classes. The first class… read more here.

Keywords: thermodynamics; black hole; class; proca theories ... See more keywords

Cosmology in beyond-generalized Proca theories

Sign Up to like & get
recommendations! Published in 2017 at "Physical Review D"

DOI: 10.1103/physrevd.95.104001

Abstract: The beyond-generalized Proca theories are the extension of second-order massive vector-tensor theories (dubbed generalized Proca theories) with two transverse vector modes and one longitudinal scalar besides two tensor polarizations. Even with this extension, the propagating… read more here.

Keywords: proca theories; generalized proca; beyond generalized; cosmology beyond ... See more keywords