Dual heterotic black holes in four and two dimensions
نویسندگان
چکیده
منابع مشابه
Dual Heterotic Black-holes in Four and Two Dimensions
We consider a class of extremal and non-extremal four-dimensional black-hole solutions occuring in toroidally compactiied heterotic string theory, whose ten-dimensional interpretation involves a Kaluza-Klein monopole and a ve-brane. We show that these four-dimensional solutions can be connected to extremal and non-extremal two-dimensional heterotic black-hole solutions through a change in the a...
متن کاملBlack Holes in Two Dimensions
Models of black holes in (1 + 1)-dimensions provide a theoretical laboratory for the study of semi-classical e ects of realistic black holes in Einstein's theory. Important examples of two-dimensional models are given by string theory motivated dilaton gravity, by ordinary general relativity in the case of spherical symmetry, and by Poincar e gauge gravity in two spacetime dimensions. In this p...
متن کاملQuantum black holes in two dimensions.
We show that a whole class of quantum actions for dilaton-gravity, which reduce to the CGHS theory in the classical limit, can be written as a Liouville-like theory. In a sub-class of this, the field space singularity observed by several authors is absent, regardless of the number of matter fields, and in addition it is such that the dilaton-gravity functional integration range (the real line) ...
متن کاملOn D-Branes and Black Holes in Four Dimensions
We find extremal four dimensional black holes with finite area constructed entirely from intersecting D-branes. We argue that the microscopic degeneracy of these configurations agrees with the Bekenstein-Hawking entropy formula. The absence of solitonic objects in these configurations may make them useful for dynamical studies of black holes.
متن کاملNear Horizon Geometry and Black Holes in Four Dimensions
A large class of extremal and near-extremal four dimensional black holes in M-theory feature near horizon geometries that contain three dimensional asymptotically anti-de Sitter spaces. Globally, these geometries are derived from AdS3 by discrete identifications. The microstates of such black holes can be counted by exploiting the conformal symmetry induced on the anti-de Sitter boundary, and t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physics Letters B
سال: 1998
ISSN: 0370-2693
DOI: 10.1016/s0370-2693(98)00808-9