Zobrazeno 1 - 10
of 85
pro vyhledávání: '"Merced Montesinos"'
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
Publikováno v:
Entropy, Vol 16, Iss 12, Pp 6515-6523 (2014)
In this paper we show that the vanishing of the scalar curvature of Ruppeiner-like metrics does not characterize the ideal gas. Furthermore, we claim through an example that flatness is not a sufficient condition to establish the absence of interacti
Externí odkaz:
https://doaj.org/article/4eaa2114b8b14092bcaf505b5eb3082f
Autor:
Merced Montesinos, Mercedes Velázquez
Publikováno v:
Symmetry, Integrability and Geometry: Methods and Applications, Vol 7, p 103 (2011)
A detailed analysis of the BF formulation for general relativity given by Capovilla, Montesinos, Prieto, and Rojas is performed. The action principle of this formulation is written in an equivalent form by doing a transformation of the fields of whic
Externí odkaz:
https://doaj.org/article/008f13b7ae5c46809d51d872e80abd46
One of modern science's most famous and controversial figures, Jerzy Plebanski was an outstanding theoretical physicist and an author of many intriguing discoveries in general relativity and quantum theory. Known for his exceptional analytic talents,
Autor:
Jorge Romero, Merced Montesinos
We obtain the Arnowitt-Deser-Misner formulation of general relativity in $n$ dimensions ($n \geq 3$) from its either $SO(n-1,1)$ [$SO(n)$] or $SO(n-1)$ Palatini Hamiltonian formulations and vice versa [we recall that $SO(n-1,1)$ [$SO(n)$] requires no
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b29efeb33d42d3a5aad6e86610844b59
http://arxiv.org/abs/2302.12273
http://arxiv.org/abs/2302.12273
We study minimal and nonminimal couplings of fermions to the Palatini action in $n$ dimensions ($n\geq 3$) from the Lagrangian and Hamiltonian viewpoints. The Lagrangian action considered is not, in general, equivalent to the Einstein-Dirac action pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3b5222635e7c1345c3215585e246490
Autor:
Diego Gonzalez, Merced Montesinos
Publikováno v:
Physical Review D. 104
We report new topological invariants in four dimensions that are generalizations of the Nieh-Yan topological invariant. The new topological invariants are obtained through a systematic method along the lines of the one used to get the Nieh-Yan form,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0666ab89cdfddb26d9df16bd46494998
https://doi.org/10.1103/physrevd.104.084020
https://doi.org/10.1103/physrevd.104.084020
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
First-order general relativity in $n$ dimensions ($n \geq 3$) has an internal gauge symmetry that is the higher-dimensional generalization of three-dimensional local translations. We report the extension of this symmetry for $n$-dimensional f(R) grav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5cb5dbbecf0a7957c29b165c8a3ecd93
http://arxiv.org/abs/2001.08759
http://arxiv.org/abs/2001.08759