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Strings and D‐branes in holographic backgrounds
Author(s) -
Israël D.
Publication year - 2005
Publication title -
fortschritte der physik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.469
H-Index - 71
eISSN - 1521-3978
pISSN - 0015-8208
DOI - 10.1002/prop.200410215
Subject(s) - partition function (quantum field theory) , physics , brane cosmology , superstring theory , theoretical physics , conformal field theory , string theory , brane , conformal map , boundary (topology) , coset , boundary conformal field theory , string (physics) , supersymmetry , mathematical physics , boundary value problem , mathematics , quantum mechanics , geometry , mathematical analysis , combinatorics , robin boundary condition , free boundary problem
We review recent progress in the study of non‐rational (boundary) conformal field theories and their applications to describe exact holographic backgrounds in superstring theory. We focus mainly on the example of the supersymmetric coset SL (2, ℝ)/ U (1), corresponding to the two‐dimensional black hole, and its dual N = 2 Liouville. In particular we discuss the modular properties of their characters, their partition function as well as the exact boundary states for their various D‐branes. Then these results are used to construct the corresponding quantities in the CFT of the NS5‐brane background, with applications to Little String Theories.