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hep-th2024
No-Boundary State for Klein Space
Walker Melton, Atul Sharma, Andrew Strominger +1
Analytic continuation from signature Minkowski to signature Klein space has emerged as a useful tool for the understanding of scattering amplitudes and flat space h…
hep-th2024
A Celestial Dual for MHV Amplitudes
Walker Melton, Atul Sharma, Andrew Strominger +1
It is shown that a 2D CFT consisting of a central charge Liouville theory, a chiral level one, rank Kac-Moody algebra and a weight free fermion holographically gener…
hep-th2024
Soft Algebras for Leaf Amplitudes
Walker Melton, Atul Sharma, Andrew Strominger
Celestial MHV amplitudes are comprised of non-distributional leaf amplitudes associated to an AdS leaf of a foliation of flat spacetime. It is shown here that the leaf amplitud…