68 citations · 158 across the 13 of their papers we have counts for
21 papers · 1 filter
Control variates for lattice field theory
Tanmoy Bhattacharya, Scott Lawrence, Jun-Sik Yoo
In most lattice field theories, correlators are plagued by a signal-to-noise problem of exponential difficulty in the time separation. We propose a method for improving the signal-…
Deep Learning of Fermion Sign Fluctuations
Scott Lawrence, Yukari Yamauchi
We describe a procedure for alleviating the fermion sign problem in which phase fluctuations are explicitly subtracted from the Boltzmann factor. Several ansätze for fluctuations a…
Semidefinite Programs at Finite Fermion Density
Scott Lawrence
Semidefinite programs can be constructed to provide a non-perturbative view of the zero-temperature behavior of quantum systems. This paper examines the properties of these semidef…
Lattice Scalar Field Theory At Complex Coupling
Scott Lawrence, Hyunwoo Oh, Yukari Yamauchi
Lattice scalar field theories encounter a sign problem when the coupling constant is complex. This is a close cousin of the real-time sign problems that afflict the lattice Schwing…
Normalizing flows for the real-time sign problem
Yukari Yamauchi, Scott Lawrence
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…
Real-Time Dynamics at Large
Scott Lawrence
The large- limit of -symmetric bosonic field theories, or -symmetric fermionic field theories, is amenable to a saddle point approximation. As a result, there is a f…