Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Mariano Celada"'
Publikováno v:
Symmetry, Vol 13, Iss 2, p 348 (2021)
We report off-shell Noether currents obtained from off-shell Noether potentials for first-order general relativity described by n-dimensional Palatini and Holst Lagrangians including the cosmological constant. These off-shell currents and potentials
Externí odkaz:
https://doaj.org/article/d380d2f6eb284875ad4188fddb628ce8
We report three manifestly Lorentz-invariant Hamiltonian formulations of minimally and nonminimally coupled fermion fields to the Holst action. These formulations are achieved by making a suitable parametrization of both the tetrad and the Lorentz co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80c06b3c9c33fac0e437132eb65d9e5f
http://arxiv.org/abs/2106.09049
http://arxiv.org/abs/2106.09049
Publikováno v:
General Relativity and Gravitation. 53
We perform, in a manifestly $SO(n-1,1)$ [$SO(n)$] covariant fashion, the Hamiltonian analysis of general relativity in $n$ dimensions written as a constrained $BF$ theory. We solve the constraint on the $B$ field in a way naturally adapted to the fol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bee7c8e86558ccdd0b48265db30ac1c8
https://doi.org/10.1007/s10714-021-02821-3
https://doi.org/10.1007/s10714-021-02821-3
Publikováno v:
Physical Review D. 101
We carry out the canonical analysis of the $n$-dimensional Palatini action with or without a cosmological constant $(n\geq3)$ introducing neither second-class constraints nor resorting to any gauge fixing. This is accomplished by providing an express
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c5098ad792f8ed4ae4cd9d1758bfce0
https://doi.org/10.1103/physrevd.101.024042
https://doi.org/10.1103/physrevd.101.024042
Publikováno v:
Symmetry, Vol 13, Iss 348, p 348 (2021)
Symmetry
Volume 13
Issue 2
Symmetry
Volume 13
Issue 2
We report off-shell Noether currents obtained from off-shell Noether potentials for first-order general relativity described by $n$-dimensional Palatini and Holst Lagrangians including the cosmological constant. These off-shell currents and potential
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ec0f272ceb9a705943454a600169f29
Autor:
Merced Montesinos, Mariano Celada
In this paper we revisit the canonical analysis of $BF$ gravity with the Immirzi parameter and a cosmological constant. By examining the constraint on the $B$ field, we realize that the analysis can be performed in a Lorentz-covariant fashion while u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3db4e9f202291d78e5ed65b1b87322ff
http://arxiv.org/abs/1912.02832
http://arxiv.org/abs/1912.02832
Publikováno v:
Physical Review D. 99
In this paper we revisit the nonmanifestly Lorentz-covariant canonical analysis of the Holst action with a cosmological constant. We take a viewpoint close to that of F. Cianfrani and G. Montani [Phys. Rev. Lett. 102, 091301 (2009)] and realize that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77df5e29d784c96ecc94157e40b64c89
https://doi.org/10.1103/physrevd.99.064029
https://doi.org/10.1103/physrevd.99.064029
We perform the canonical analysis of the Holst action for general relativity with a cosmological constant without introducing second-class constraints. Our approach consists in identifying the dynamical and nondynamical parts of the involved variable
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::77aafe0b53dd9ad13b3b18a15278759b
Publikováno v:
Physical Review D. 98
We work on a spacetime manifold foliated by timelike leaves. In this setting, we explore the solution of the second-class constraints arising during the canonical analysis of the Holst action with a cosmological constant. The solution is given in a m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58d3c7e090ccf1a9213dfeb5ff341928
https://doi.org/10.1103/physrevd.98.124002
https://doi.org/10.1103/physrevd.98.124002
In $n$-dimensional spacetimes ($n>3$), there exists an internal gauge symmetry of the Palatini action with a cosmological constant that is the natural generalization of the so-called "local translations" of three-dimensional general relativity. We re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::492749e3c4c173f34771c6a5d5571af6
http://arxiv.org/abs/1809.10729
http://arxiv.org/abs/1809.10729