Phys. Rev. Lett. 73, 1468–1471 (1994)Exact Four-Dimensional Dyonic Black Holes and Bertotti-Robinson Spacetimes in String TheoryReceived 6 April 1994; published in the issue dated 12 September 1994 Conformal field theories corresponding to two-dimensional electrically charged black holes and to two-dimensional anti-de Sitter space with a covariantly constant electric field are simply constructed as SL(2,R)/Z Wess-Zumino-Witten coset models. Four-dimensional spacetime solutions are obtained by tensoring these two-dimensional theories with SU(2)/Z(m) coset models. These describe a family of dyonic black holes and the Bertotti-Robinson universe. © 1994 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.73.1468
DOI:
10.1103/PhysRevLett.73.1468
PACS:
11.25.Mj, 04.60.Kz, 04.70.Dy
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