154 citations · 1.1k across the 20 of their papers we have counts for
20 papers
Catapult Dynamics and Phase Transitions in Quadratic Nets
David Meltzer, Min Chen, Junyu Liu
Neural networks trained with gradient descent can undergo non-trivial phase transitions as a function of the learning rate. In \cite{lewkowycz2020large} it was discovered that wide…
Detectors in weakly-coupled field theories
Simon Caron-Huot, Murat Kologlu, Petr Kravchuk +2
We initiate a study of asymptotic detector operators in weakly-coupled field theories. These operators describe measurements that can be performed at future null infinity in a coll…
The Inflationary Wavefunction from Analyticity and Factorization
David Meltzer
We study the analytic properties of tree-level wavefunction coefficients in quasi-de Sitter space. We focus on theories which spontaneously break dS boost symmetries and can produc…
Dispersion Formulas in QFTs, CFTs, and Holography
David Meltzer
We study momentum space dispersion formulas in general QFTs and their applications for CFT correlation functions. We show, using two independent methods, that QFT dispersion formul…
On duality of color and kinematics in (A)dS momentum space
Soner Albayrak, Savan Kharel, David Meltzer
We explore color-kinematic duality for tree-level AdS/CFT correlators in momentum space. We start by studying the bi-adjoint scalar in AdS at tree-level as an illustrative example.…
CFT Unitarity and the AdS Cutkosky Rules
David Meltzer, Allic Sivaramakrishnan
We derive the Cutkosky rules for conformal field theories (CFTs) at weak and strong coupling. These rules give a simple, diagrammatic method to compute the double-commutator that a…