Stationary rotating black holes in theories with gravitational Chern-Simons Lagrangian term

Scientific paper - Original scientific paper

• Author: Loriano Bonora
• Author: Maro Cvitan
• Author: Predrag Dominis Prester
• Author: Silvio Pallua
• Author: Ivica Smolić
• Author's institution: University of Zagreb; Faculty of Science; (Department of Physics)
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Physics

Abstract (english)

We study the effects of introducing purely gravitational Chern-Simons Lagrangian terms in ordinary Einstein gravity on stationary rotating black hole solutions and on the associated thermodynamical properties, in a generic number of dimensions which support these terms (i.e., in D=4k−1). We analyze the conditions, namely the number of vanishing angular momenta, under which the contributions of the Chern-Simons term to the equations of motion and the black hole entropy vanish. The particular case of a seven-dimensional theory in which a purely gravitational Chern-Simons term is added to the Einstein-Hilbert Lagrangian in D=7 dimensions is investigated in some detail. As we have not been able to find exact analytic solutions in nontrivial cases, we turn to perturbation theory and calculate the first-order perturbative correction to the Myers-Perry metric in the case where all angular momenta are equal. The expansion parameter is a dimensionless combination linear in the Chern-Simons coupling constant and the angular momentum. Corrections to horizon and ergosurface properties, as well as black hole entropy and temperature, are presented.

• Keywords (english): rotating black holes; gravitational Chern-Simons terms
• Language: english
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Peer review - international
• Publication version: Published version
• Journal title: Physical Review D - Particles, Fields, Gravitation and Cosmology
• Numbering: vol. 87, no. 2, 24047
• p-ISSN: 1550-7998
• e-ISSN: 1550-2368
• DOI: https://doi.org/10.1103/PhysRevD.87.024047
• URN:NBN: urn:nbn:hr:217:149666
• Publication: 2013
• Project: Number: 119-0982930-1016; Title (croatian): Elementarne čestice, teorija polja i kozmologija; Leader: Ivica Picek; Jurisdiction: Croatia; Funding stream: ZP
• Document URL: https://journals.aps.org/prd/abstract/10.1103/PhysRevD.87.024047
• Type of resource: Text
• Access conditions: Open access
• Public note: Copyright (2013) by the American Physical Society. Received 21 October 2012; published 30 January 2013.
• Created on: 2019-11-24 12:00:57