Contour deformations for nonholomorphic actions

Journal Article · 18 October 2024 · Physical Review. D.

DOI: https://doi.org/10.1103/PhysRevD.110.074512 · OSTI ID:2472873

Lawrence, Scott ; Valgushev, Semeon ; Xiao, Jianan ; Yamauchi, Yukari

We show how contour deformations may be used to control the sign problem of lattice Monte Carlo calculations with nonholomorphic Boltzmann factors. Such actions arise naturally in quantum mechanical scattering problems. The approach is demonstrated in conjunction with the holomorphic gradient flow. As our central example we compute the real-time evolution of a particle in a one-dimensional analog of the Yukawa potential. Published by the American Physical Society 2024

• Sponsoring Organization: USDOE
• Grant/Contract Number: SC0021892; FG02-00ER41132; 89233218CNA000001
• OSTI ID: 2472873
• Journal Information: Physical Review. D., Journal Name: Physical Review. D. Journal Issue: 7 Vol. 110; ISSN PRVDAQ; ISSN 2470-0010
• Publisher: American Physical SocietyCopyright Statement
• Country of Publication: United States
• Language: English