Article
Rotating Charged Black Hole Solution in Heterotic String Theory
Physical Review Letters (Impact Factor: 7.73). 04/1992; DOI: 10.1103/PhysRevLett.69.1006
Source: arXiv

Article: A DUAL FOURDIMENSIONAL SUPERSTRING
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ABSTRACT: The 26dimensional bosonic string, first suggested by Nambu and Goto, is reduced to a fourdimensional superstring by using two species of six and five Majorana fermions as proposed by Deo. These two species of fermions differ in their "neutrinolike" phase, and are vectors in the bosonic representation SO(d1, 1). Using Polchinski's equivalence between operators and states, we can write the Virasoro generators for fourdimensional string theory. The theory is shown to give the same results as given by other superstrings and also reveals the wellknown aspects of fourdimensional string theory. The bosons and the fermions are found to be the basis for constructing this string theory which includes gravity and exhibits strong–weak coupling duality as well as the usual electric–magnetic duality. This formalism is used to calculate the metric tensor as well as the entropy–area relation for a black hole.International Journal of Modern Physics A 01/2012; 25(07). · 1.09 Impact Factor  [Show abstract] [Hide abstract]
ABSTRACT: Fourdimensional heterotic string effective action is known to admit nonrotating electrically and magnetically charged black hole solutions. The partition function and entropy is computed for electrically charged black holes and is vanishing in some extremal limit. For the magnetically charged black holes the entropy is also argued to be vanishing in the same extremal limit when these black hole solutions are related by Sduality transformations.Modern Physics Letters A 11/2011; 11(39n40). · 1.34 Impact Factor  [Show abstract] [Hide abstract]
ABSTRACT: Recently, it has been suggested that Hawking radiation can be derived from quantum tunneling methods. Here, we calculated Hawking temperature of dilatonic black holes from tunneling formalism. The two semiclassical methods adopted here are: the nullgeodesic method proposed by Parikh and Wilczek and the Hamilton–Jacobi method proposed by Angheben et al. We apply the two methods to analyze the Hawking temperature of the static spherical symmetric dilatonic black hole, the rotating Kaluza–Klein black hole, and the rotating Kerr–Sen black hole.Modern Physics Letters A 11/2011; 23(40). · 1.34 Impact Factor
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