6 papers
A Combinatorial Origin of Locality
Laurentiu Rodina, Giuseppe Sellaroli, Jonathan Valenzuela
Locality and unitarity are fundamental principles of quantum field theory. For tree-level scattering amplitudes, locality determines which propagator poles may occur together, whil…
Sampling the Graviton Pole and Deprojecting the Swampland
Guangzhuo Peng, Laurentiu Rodina, Anna Tokareva +1
We develop a primal bootstrap framework for effective field theories in the presence of a graviton pole, based on finite-resolution sampling rather than smearing, while also allowi…
Cosmological Wavefunctions as Amplitudes: Dual Shuffle Factorization and Uniqueness from New Hidden Zeros
Yang Li, Laurentiu Rodina
We show that cosmological wavefunctions in theories naturally generalize flat-space scattering amplitudes: via a simple map from tube variables to Mandel…
Spectral Constraints on Theories of Colored Particles and Gravity
Aaron Hillman, Yu-tin Huang, Laurentiu Rodina +1
In this letter, we consider effective field theories for light fields transforming under the fundamental or adjoint representation of a continuous group. We demonstrate that in the…
Emergence of Unitarity and Locality from Hidden Zeros at One-Loop Order
Jeffrey V. Backus, Laurentiu Rodina
Recent investigations into the geometric structure of scattering amplitudes have revealed the surprising existence of "hidden zeros": secret kinematic loci where tree-level amplitu…
Hidden zeros are equivalent to enhanced ultraviolet scaling and lead to unique amplitudes in Tr() theory
Laurentiu Rodina
We investigate the hidden amplitude zeros discovered by Arkani-Hamed et al., which describe a non-trivial vanishing of scattering amplitudes on special external kinematics. We firs…