Erratum to: On self-similar axion-dilaton configurations
نویسندگان
چکیده
منابع مشابه
Dilaton – Axion Symmetry
The heterotic string compactified on a six-torus is described by a low-energy effective action consisting of N=4 supergravity coupled to N=4 super Yang-Mills, a theory that was studied in detail many years ago. By explicitly carrying out the dimensional reduction of the massless fields, we obtain the bosonic sector of this theory. In the Abelian case the action is written with manifest global O...
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In this talk some essential features of stringy black holes are described. We consider charged four-dimensional axion-dilaton black holes. The Hawking temperature and the entropy of all solutions are shown to be simple functions of the squares of supercharges, defining the positivity bounds. Spherically symmetric and multi black hole solutions are presented. The extreme solutions have some unbr...
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Stationary four-dimensional BPS solutions to gravity coupled bosonic theories admitting a three–dimensional sigma–model representation on coset spaces are interpreted as null geodesics of the target manifold equipped with a certain number of harmonic maps. For asymptotically flat (or Taub–NUT) space–times such geodesics can be directly parametrized in terms of charges saturating the Bogomol’nyi...
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The force densities exerted on a localised material system by linearised interaction with fields of axionic and dilatonic type are shown to be describable very generally by relatively simple expressions that are well behaved for fields of purely external origin, but that will be subject to ultraviolet divergences requiring regularisation for fields arising from self interaction in submanifold s...
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We use soliton techniques of the two-dimensional reduced β-function equations to obtain non-trivial string backgrounds from flat space. These solutions are characterized by two integers (n,m) referring to the soliton numbers of the metric and axion-dilaton sectors respectively. We show that the NappiWitten universe associated with the SL(2) × SU(2)/SO(1, 1) × U(1) CFT coset arises as an (1, 1) ...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2020
ISSN: 1029-8479
DOI: 10.1007/jhep10(2020)105