University of Cambridge > Talks.cam > DAMTP Friday GR Seminar > A $d$ dimensional stress tensor for $d+2$ dimensional gravity

A $d$ dimensional stress tensor for $d+2$ dimensional gravity

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We consider scattering of gravitons in $d+2$ dimensional asymptotically flat spacetimes. The $S$-matrix elements are recast correlation functions in a putative $d$ dimensional theory with conformal invariance. The subleading soft graviton theorem is shown to imply the existence of a $d$ dimensional boundary stress tensor (which satisfies the Ward identities of a CFT ). Similarly, the leading soft-photon theorem is shown to imply the existence of a conserved current.

This talk is part of the DAMTP Friday GR Seminar series.

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