Aspects of the BMS/CFT correspondence
Abstract
After a review of symmetries and classical solutions involved in the AdS_{3}/CFT_{2} correspondence, we apply a similar analysis to asymptotically flat spacetimes at null infinity in 3 and 4 dimensions. In the spirit of two dimensional conformal field theory, the symmetry algebra of asymptotically flat spacetimes at null infinity in 4 dimensions is taken to be the semidirect sum of supertranslations with infinitesimal local conformal transformations and not, as usually done, with the Lorentz algebra. As a first application, we derive how the symmetry algebra is realized on solution space. In particular, we work out the behavior of Bondi’s news tensor, mass and angular momentum aspects under local conformal transformations.
 Publication:

Journal of High Energy Physics
 Pub Date:
 May 2010
 DOI:
 10.1007/JHEP05(2010)062
 arXiv:
 arXiv:1001.1541
 Bibcode:
 2010JHEP...05..062B
 Keywords:

 AdSCFT Correspondence;
 Gauge Symmetry;
 Classical Theories of Gravity;
 SpaceTime Symmetries;
 High Energy Physics  Theory;
 General Relativity and Quantum Cosmology
 EPrint:
 40 pages Latex file