Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Pilo, L."'
Publikováno v:
Journal of Cosmology and Astroparticle Physics
We analyze the theories of gravity modified by a generic nonderivative potential built from the metric, under the minimal requirement of unbroken spatial rotations. Using the canonical analysis, we classify the potentials $V$ according to the number
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6dac5e625819962acc13d6e447ba1b05
http://arxiv.org/abs/1407.4991
http://arxiv.org/abs/1407.4991
Publikováno v:
Journal of Cosmology and Astroparticle Physics
We study the cosmology of general massive gravity theories with five propagating degrees of freedom. This large class of theories includes both the case with a residual Lorentz invariance as the cases with simpler rotational invariance. We find that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::957ae97bdd8ae7ee4bdf08db18b59ccd
https://doi.org/10.1088/1475-7516/2014/05/036
https://doi.org/10.1088/1475-7516/2014/05/036
We find a new class of theories of massive gravity with five propagating degrees of freedom where only rotations are preserved. Our results are based on a non-perturbative and background-independent Hamiltonian analysis. In these theories the weak fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::43c19d14c8c45f5a3680246e9dcf365d
http://hdl.handle.net/11697/9428
http://hdl.handle.net/11697/9428
Massive gravity can be described by adding to the Einstein-Hilbert action a function V of metric components. By using the Hamiltonian canonical analysis, we find the most general form of V such that five degrees of freedom propagate non perturbativel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44ce7aef1f85b8496c502675fa63225d
http://hdl.handle.net/11697/322
http://hdl.handle.net/11697/322
A systematic study of the different phases of Lorentz-breaking massive gravity in a curved background is performed. For tensor and vector modes, the analysis is very close to that of Minkowski space. The most interesting results are in the scalar sec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e727275d30877152d9408f987336db2
http://hdl.handle.net/11368/2900772
http://hdl.handle.net/11368/2900772
Publikováno v:
ResearcherID
Scopus-Elsevier
Scopus-Elsevier
We clarify some general issues in models where gravity is localized at intermediate distances. We introduce the radion mode, which is usually neglected, and we point out that its role in the model is crucial. We show that the brane bending effects di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6149b8a38ad69315a1baa32692a280bc
http://arxiv.org/abs/hep-th/0004028
http://arxiv.org/abs/hep-th/0004028