Emission from the D1D5 CFT
High Energy Physics - Theory
2009-11-09 v2
Abstract
It is believed that the D1D5 brane system is described by an 'orbifold CFT' at a special point in moduli space. We first develop a general formulation relating amplitudes in a d-dimensional CFT to absorption/emission of quanta from flat infinity. We then construct the D1D5 vertex operators for minimally coupled scalars in supergravity, and use these to compute the CFT amplitude for emission from a state carrying a single excitation. Using spectral flow we relate this process to one where we have emission from a highly excited initial state. In each case the radiation rate is found to agree with the radiation found in the gravity dual.
Cite
@article{arxiv.0906.2015,
title = {Emission from the D1D5 CFT},
author = {Steven G. Avery and Borun D. Chowdhury and Samir D. Mathur},
journal= {arXiv preprint arXiv:0906.2015},
year = {2009}
}
Comments
49 pages, latex, 6 figures; v2: reformatted for JHEP, corrected typos, and added references