Static and rotating black strings in dynamical Chern–Simons modified gravity

Adolfo Cisterna, Cristóbal Corral, Simón del Pino

Resultado de la investigación: Article

Resumen

Four-dimensional homogeneous static and rotating black strings in dynamical Chern–Simons modified gravity, with and without torsion, are presented. Each solution is supported by a scalar field that depends linearly on the coordinate that span the string. The solutions are locally AdS 3 × R and they represent the continuation of the Bañados–Teitelboim–Zanelli black hole. Moreover, they belong to the so-called Chern–Simons sector of the space of solutions of the theory, since the Cotton tensor contributes nontrivially to the field equations. The case with nonvanishing torsion is studied within the first-order formalism of gravity, and it considers nonminimal couplings of the scalar fields to three topological invariants: Nieh–Yan, Pontryagin and Gauss–Bonnet terms, which are studied separately. These nonminimal couplings generate torsion in vacuum, in contrast to Einstein–Cartan theory. In all cases, torsion contributes to an effective cosmological constant that, in particular cases, can be set to zero by a proper choice of the parameters.

Idioma originalEnglish
Número de artículo400
PublicaciónEuropean Physical Journal C
Volumen79
N.º5
DOI
EstadoPublished - 1 may 2019
Publicado de forma externa

Huella dactilar

Torsional stress
torsion
Gravitation
strings
gravitation
scalars
cotton
Cotton
Tensors
sectors
Vacuum
tensors
formalism
vacuum

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Physics and Astronomy (miscellaneous)

Citar esto

Cisterna, Adolfo ; Corral, Cristóbal ; Pino, Simón del. / Static and rotating black strings in dynamical Chern–Simons modified gravity. En: European Physical Journal C. 2019 ; Vol. 79, N.º 5.
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Static and rotating black strings in dynamical Chern–Simons modified gravity. / Cisterna, Adolfo; Corral, Cristóbal; Pino, Simón del.

En: European Physical Journal C, Vol. 79, N.º 5, 400, 01.05.2019.

Resultado de la investigación: Article

TY - JOUR

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AU - Corral, Cristóbal

AU - Pino, Simón del

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N2 - Four-dimensional homogeneous static and rotating black strings in dynamical Chern–Simons modified gravity, with and without torsion, are presented. Each solution is supported by a scalar field that depends linearly on the coordinate that span the string. The solutions are locally AdS 3 × R and they represent the continuation of the Bañados–Teitelboim–Zanelli black hole. Moreover, they belong to the so-called Chern–Simons sector of the space of solutions of the theory, since the Cotton tensor contributes nontrivially to the field equations. The case with nonvanishing torsion is studied within the first-order formalism of gravity, and it considers nonminimal couplings of the scalar fields to three topological invariants: Nieh–Yan, Pontryagin and Gauss–Bonnet terms, which are studied separately. These nonminimal couplings generate torsion in vacuum, in contrast to Einstein–Cartan theory. In all cases, torsion contributes to an effective cosmological constant that, in particular cases, can be set to zero by a proper choice of the parameters.

AB - Four-dimensional homogeneous static and rotating black strings in dynamical Chern–Simons modified gravity, with and without torsion, are presented. Each solution is supported by a scalar field that depends linearly on the coordinate that span the string. The solutions are locally AdS 3 × R and they represent the continuation of the Bañados–Teitelboim–Zanelli black hole. Moreover, they belong to the so-called Chern–Simons sector of the space of solutions of the theory, since the Cotton tensor contributes nontrivially to the field equations. The case with nonvanishing torsion is studied within the first-order formalism of gravity, and it considers nonminimal couplings of the scalar fields to three topological invariants: Nieh–Yan, Pontryagin and Gauss–Bonnet terms, which are studied separately. These nonminimal couplings generate torsion in vacuum, in contrast to Einstein–Cartan theory. In all cases, torsion contributes to an effective cosmological constant that, in particular cases, can be set to zero by a proper choice of the parameters.

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