Charged rotating Kaluza-Klein black holes in dilaton gravity

Journal Article · Mon Feb 15 04:00:00 EST 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.81.044001· OSTI ID:21409290

Allahverdizadeh, Masoud ^[1]; Matsuno, Ken ^[2]; Sheykhi, Ahmad ^[3]

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1. Institut fuer Physik, Universitaet Oldenburg, D-26111 Oldenburg (Germany)
2. Department of Mathematics and Physics, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585 (Japan)
3. Department of Physics, Shahid Bahonar University, Kerman 76175 (Iran, Islamic Republic of)

We obtain a class of slowly rotating charged Kaluza-Klein black hole solutions of the five-dimensional Einstein-Maxwell-dilaton theory with arbitrary dilaton coupling constant. At infinity, the spacetime is effectively four dimensional. In the absence of the squashing function, our solution reduces to the five-dimensional asymptotically flat slowly rotating charged dilaton black hole solution with two equal angular momenta. We calculate the mass, the angular momentum, and the gyromagnetic ratio of these rotating Kaluza-Klein dilaton black holes. It is shown that the dilaton field and the nontrivial asymptotic structure of the solutions modify the gyromagnetic ratio of the black holes. We also find that the gyromagnetic ratio crucially depends on the dilaton coupling constant, {alpha}, and decreases with increasing {alpha} for any size of the compact extra dimension.

• OSTI ID: 21409290
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 4 Vol. 81; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
79 ASTRONOMY AND ASTROPHYSICS
ANGULAR MOMENTUM
ASYMPTOTIC SOLUTIONS
BLACK HOLES
COUPLING CONSTANTS
EINSTEIN-MAXWELL EQUATIONS
EQUATIONS
FIELD EQUATIONS
FIELD THEORIES
FOUR-DIMENSIONAL CALCULATIONS
GRAVITATION
GYROMAGNETIC RATIO
KALUZA-KLEIN THEORY
MANY-DIMENSIONAL CALCULATIONS
MASS
MATHEMATICAL SOLUTIONS
SIMULATION
SPACE-TIME
UNIFIED-FIELD THEORIES