3 papers
hep-th2025
De Sitter Light-Ray Operators
Shounak De, Yakov Landau
In this work, we initiate the study of light-ray operators in four-dimensional de Sitter space focusing on null integrals of the stress tensor. In Minkowski space, the null integra…
hep-th2025
Hidden Zeros of the Cosmological Wavefunction
Shounak De, Shruti Paranjape, Andrzej Pokraka +2
Motivated by the recent discovery of hidden zeros in particle and string amplitudes, we characterize zeros of individual graph contributions to the cosmological wavefunction of a s…
hep-th2024
A physical basis for cosmological correlators from cuts
Shounak De, Andrzej Pokraka
Significant progress has been made in our understanding of the analytic structure of FRW wavefunction coefficients, facilitated by the development of efficient algorithms to derive…