Normalizing flows for the real-time sign problem
Y. Yamauchi* and S. Lawrence
Pre-published on:
May 16, 2022
Published on:
July 08, 2022
Abstract
We discuss the application of normalizing flows to bosonic lattice field theories with real-time sign problems. A normalizing flow, once it is found for such a lattice field theory, is guaranteed to solve its sign problem. We argue for the existence of normalizing flows for bosonic lattice field theories in the Schwinger-Keldish formalism in a few ways. We then discuss how this existence is a specific feature of bosonic theories: such arguments break down for fermionic systems, whether at finite density or in real-time.
DOI: https://doi.org/10.22323/1.396.0621
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