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SUMMARY:Black Hole Entropy for Higher Curvature Gravity with Higher Spin F
 ields - Zihan Yan\, DAMTP\, University of Cambridge
DTSTART:20240503T120000Z
DTEND:20240503T130000Z
UID:TALK216559@talks.cam.ac.uk
CONTACT:Xi Tong
DESCRIPTION:Assuming a Killing horizon background\, we generalise the line
 ar null Raychaudhuri equation to higher curvature gravity with spin s ≥ 
 2 bosonic fields\, and we attempt to extract the black hole entropy from t
 he Raychaudhuri equation at the linear order of dynamical perturbation. Un
 like pure gravity\, scalar fields\, and vector fields\, we show that an ad
 ditional “integrability condition” must be satisfied by the higher spi
 n theory/field in order to extract a “sensible” entropy formula. We te
 st this condition in several examples and speculate about its role for hig
 her spin theories.
LOCATION:Potter room/Zoom
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