Recent Progress in Fermion Monte Carlo

Conference · Tue Jan 24 00:00:00 EST 2006

DOI:https://doi.org/10.1021/bk-2007-0953.ch008· OSTI ID:877876

Kalos, M H; Pederiva, F

Our approach to the solution of the Schroedinger Equation for many-fermion systems has been extensively revised. We have devised a generalization of ''acceptance/rejection'' that applies to signed random walkers. We have introduced a new class of importance functions for two walkers that better reflects the structure of the enlarged Euclidean space of the pair. For greater flexibility, we no longer rely on the ''local energy'' of the importance function to determine the dynamics of the walk. We sketch these technical changes and give new results for the two-dimensional electron gas.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 877876
• Report Number(s): UCRL-CONF-218420; TRN: US0601657
• Resource Relation: Journal Volume: 953; Conference: Presented at: Pacifichem 2005, Honolulu, HI, United States, Dec 15 - Dec 20, 2005
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
ELECTRON GAS
EUCLIDEAN SPACE
FERMIONS
FLEXIBILITY
SCHROEDINGER EQUATION