activity
20122025
most citedDirect CP violation and the rule in decay from the Standard Model

66 citations · 144 across the 11 of their papers we have counts for

collaborators

11 papers

hep-lat2025

Progress in Normalizing Flows for 4d Gauge Theories

Ryan Abbott, Denis Boyda, Daniel C. Hackett +4

Normalizing flows have arisen as a tool to accelerate Monte Carlo sampling for lattice field theories. This work reviews recent progress in applying normalizing flows to 4-dimensio…

hep-lat2024

Practical applications of machine-learned flows on gauge fields

Ryan Abbott, Michael S. Albergo, Denis Boyda +5

Normalizing flows are machine-learned maps between different lattice theories which can be used as components in exact sampling and inference schemes. Ongoing work yields increasin…

hep-lat2024

Multiscale Normalizing Flows for Gauge Theories

Ryan Abbott, Michael S. Albergo, Denis Boyda +5

Scale separation is an important physical principle that has previously enabled algorithmic advances such as multigrid solvers. Previous work on normalizing flows has been able to…

hep-lat2024

Applications of flow models to the generation of correlated lattice QCD ensembles

Ryan Abbott, Aleksandar Botev, Denis Boyda +7

Machine-learned normalizing flows can be used in the context of lattice quantum field theory to generate statistically correlated ensembles of lattice gauge fields at different act…

hep-lat2023★ 5 cited

Lattice quantum chromodynamics at large isospin density: 6144 pions in a box

Ryan Abbott, William Detmold, Fernando Romero-López +6

We present an algorithm to compute correlation functions for systems with the quantum numbers of many identical mesons from lattice quantum chromodynamics (QCD). The algorithm is n…

hep-lat2023★ 10 cited

Normalizing flows for lattice gauge theory in arbitrary space-time dimension

Ryan Abbott, Michael S. Albergo, Aleksandar Botev +11

Applications of normalizing flows to the sampling of field configurations in lattice gauge theory have so far been explored almost exclusively in two space-time dimensions. We repo…

hep-lat2022★ 5 cited

Aspects of scaling and scalability for flow-based sampling of lattice QCD

Ryan Abbott, Michael S. Albergo, Aleksandar Botev +10

Recent applications of machine-learned normalizing flows to sampling in lattice field theory suggest that such methods may be able to mitigate critical slowing down and topological…

hep-lat2022★ 7 cited

Sampling QCD field configurations with gauge-equivariant flow models

Ryan Abbott, Michael S. Albergo, Aleksandar Botev +11

Machine learning methods based on normalizing flows have been shown to address important challenges, such as critical slowing-down and topological freezing, in the sampling of gaug…

hep-lat2022★ 48 cited

Gauge-equivariant flow models for sampling in lattice field theories with pseudofermions

Ryan Abbott, Michael S. Albergo, Denis Boyda +9

This work presents gauge-equivariant architectures for flow-based sampling in fermionic lattice field theories using pseudofermions as stochastic estimators for the fermionic deter…

hep-lat2020★ 66 cited

Direct CP violation and the rule in decay from the Standard Model

Ryan Abbott, Thomas Blum, Peter A. Boyle +12

We present a lattice QCD calculation of the , decay amplitude and , the measure of direct CP-violation in decay, improving our 2015 ca…

physics.acc-ph2012★ 3 cited

Prototyping of the ILC Baseline Positron Target

Jeff Gronberg, Craig Brooksby, Tom Piggott +3

The ILC positron system uses novel helical undulators to create a powerful photon beam from the main electron beam. This beam is passed through a titanium target to convert it into…