PoS - Proceedings of Science
Volume 396 - The 38th International Symposium on Lattice Field Theory (LATTICE2021) - Poster
HMC with Normalizing Flows
S. Foreman*, T. Izubuchi, L. Jin, X.y. Jin, J.C. Osborn and A. Tomiya
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Pre-published on: May 16, 2022
Published on:
Abstract
We propose using Normalizing Flows as a trainable kernel within the molecular dynamics update of Hamiltonian Monte Carlo (HMC).

By learning (invertible) transformations that simplify our dynamics, we can outperform traditional methods at generating independent configurations.

We show that, using a carefully constructed network architecture, our approach can be easily scaled to large lattice volumes with minimal retraining effort.

The source code for our implementation is publicly available online at https://www.github.com/nftqcd/fthmc.
DOI: https://doi.org/10.22323/1.396.0073
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