Name: Andrew Waldron
Affiliation: UC Davis, Dept. of Mathematics (professor)
Email: wally@math.ucdavis.edu
Webpage: www.math.ucdavis.edu/~wally/


Title:
Higher Spins in Cosmological Backgrounds and how they Kill Lambda


Abstract:
Higher spins in (Anti) de Sitter backgrounds exhibit various unitarity phases
in the (mass^2,Lambda)-plane. Along critical boundary lines new partially
massless theories and accompanying gauge invariances emerge.  Their phase
diagram suggests a new mechanism to solve the cosmological constant problem
based on unitarity.