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PIRSA:23110053

(Weyl-)Fefferman-Graham asymptotic symmetries

APA

Delfante, A. (2023). (Weyl-)Fefferman-Graham asymptotic symmetries. Perimeter Institute for Theoretical Physics. https://pirsa.org/23110053

Arnaud Delfante University of Mons

Talk numberPIRSA:23110053
Source RepositoryPIRSA
Collection

Abstract

To develop a quantum gravity theory, it is fundamental to move away from the gauge-fixing approach and instead employ a gauge-free analysis. There is an increasing body of evidence suggesting that the symmetries employed for gauge-fixing might carry charge. Consequently, setting the associated fields to zero is a physical constraint on the system, which should be avoided. In this talk, we will examine a partial fixing of the Fefferman-Graham (FG) gauge, referred to as the Weyl-Fefferman-Graham (WFG) gauge, which restores boundary Weyl covariance. We will show that the diffeomorphism mapping WFG to FG can be charged and discuss how this relates to holography.

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Zoom link https://pitp.zoom.us/j/93359035909?pwd=aHo0TUFXekZaeCtrT2FzNDZKUW15Zz09