82 citations · 274 across the 16 of their papers we have counts for
4 papers · 1 filter
Celestial Leaf Amplitudes
Walker Melton, Atul Sharma, Andrew Strominger
Celestial amplitudes may be decomposed as weighted integrals of AdS-Witten diagrams associated to each leaf of a hyperbolic foliation of spacetime. We show, for the Kleinian th…
Celestial Gluon Amplitudes from the Outside In
Walker Melton, Sruthi A. Narayanan
We show that, given a two-dimensional realization of the celestial OPE in self-dual Yang-Mills, we can find a scalar source around which scattering amplitudes replicate correlation…
Conformal Correlators on the Lorentzian Torus
Walker Melton, Atul Sharma, Andrew Strominger
The general form of a 2D conformal field theory (CFT) correlator on a Euclidean Riemann surface, Lorentzian plane or Lorentzian cylinder is well-known. This paper describes the gen…
Hyperbolic Vacua in Minkowski Space
Walker Melton, Filip Niewinski, Andrew Strominger +1
Families of Lorentz, but not Poincare, invariant vacua are constructed for a massless scalar field in 4D Minkowski space. These are generalizations of the Rindler vacuum with a lar…