Imperial College London
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Prof Daniel Waldram

Faculty of Natural Sciences, Department of Physics

Professor of Theoretical Physics
 
 
 
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Contact

 

+44 (0)20 7594 7645d.waldram

 
 
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Assistant

 

Ms Graziela De Nadai +44 (0)20 7594 7843

 
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Location

 

517AHuxley BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Ashmore:2016:10.1007/JHEP12(2016)146,
author = {Ashmore, A and Petrini, M and Waldram, D},
doi = {10.1007/JHEP12(2016)146},
journal = {Journal of High Energy Physics},
title = {The exceptional generalised geometry of supersymmetric AdS flux backgrounds},
url = {http://dx.doi.org/10.1007/JHEP12(2016)146},
volume = {2016},
year = {2016}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - We analyse generic AdS flux backgrounds preserving eight supercharges in D = 4 and D = 5 dimensions using exceptional generalised geometry. We show that they are described by a pair of globally defined, generalised structures, identical to those that appear for flat flux backgrounds but with different integrability conditions. We give a number of explicit examples of such “exceptional Sasaki-Einstein” backgrounds in type IIB supergravity and M-theory. In particular, we give the complete analysis of the generic AdS5 M-theory backgrounds. We also briefly discuss the structure of the moduli space of solutions. In all cases, one structure defines a “generalised Reeb vector” that generates a Killing symmetry of the background corresponding to the R-symmetry of the dual field theory, and in addition encodes the generic contact structures that appear in the D = 4 M-theory and D = 5 type IIB cases. Finally, we investigate the relation between generalised structures and quantities in the dual field theory, showing that the central charge and R-charge of BPS wrapped-brane states are both encoded by the generalised Reeb vector, as well as discussing how volume minimisation (the dual of a- and FF-maximisation) is encoded.
AU  - Ashmore,A
AU  - Petrini,M
AU  - Waldram,D
DO  - 10.1007/JHEP12(2016)146
PY  - 2016///
SN  - 1029-8479
TI  - The exceptional generalised geometry of supersymmetric AdS flux backgrounds
T2  - Journal of High Energy Physics
UR  - http://dx.doi.org/10.1007/JHEP12(2016)146
UR  - http://hdl.handle.net/10044/1/50758
VL  - 2016
ER  -
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