activity
20052023
most citedThe Effective Field Theory of Inflation

1.1k citations · 6.5k across the 64 of their papers we have counts for

collaborators

64 papers

hep-th2023

Higher Eisenstein Series and a Duality-Invariant Distance Measure

Nathan Benjamin, A. Liam Fitzpatrick

The Petersson inner product is a natural inner product on the space of modular invariant functions. We derive a formula, written as a convergent sum over elementary functions, for…

hep-th2023

LSZ in Action: Extracting Form Factors from Correlators Nonperturbatively in 2d Theory

A. Liam Fitzpatrick, Zhengxian Mei

In this paper, we compute multiparticle form factors of local operators in 2d theory using a recently proposed method [1] for efficiently implementing the LSZ prescription wi…

hep-th2023

Improving Modular Bootstrap Bounds with Integrality

A. Liam Fitzpatrick, Wei Li

We implement methods that efficiently impose integrality -- i.e., the condition that the coefficients of characters in the partition function must be integers -- into numerical mod…

hep-th2023★ 1 cited

Large Momentum EFT and Lightcone Quantization

Hongbin Chen, A. Liam Fitzpatrick, Emanuel Katz +1

We develop methods for computing the effective action at infinite momentum for QFTs at finite volume which do not rely on the theory having a Lagrangian description. We do t…

hep-ph2022★ 1 cited

Snowmass Theory Frontier: Effective Field Theory

Matthew Baumgart, Fady Bishara, Tomas Brauner +34

We summarize recent progress in the development, application, and understanding of effective field theories and highlight promising directions for future research. This Report is p…

hep-th2022★ 25 cited

Nonperturbative Bounds on Scattering of Massive Scalar Particles in

Hongbin Chen, A. Liam Fitzpatrick, Denis Karateev

We study two-to-two scattering amplitudes of a scalar particle of mass . For simplicity, we assume the presence of symmetry and that the particle is $\mathbb{Z}_2…