Sign problem of the fermionic shadow wave function
Journal Article
·
· Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
- Johannes Gutenberg Univ., Mainz (Germany); Graduate School Materials Science, Mainz (Germany)
- Univ. of Trento (Italy); Istituto Nazionale di Fisica Nucleare, Trento (Italy). Trento Institute for Fundamental Physics and Applications (INFN-TIFPA)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Johannes Gutenberg Univ., Mainz (Germany); Univ. Paderborn (Germany)
Here, we present a whole series of methods to alleviate the sign problem of the fermionic shadow wave function in the context of variational Monte Carlo. The effectiveness of our techniques is demonstrated on liquid 3He. We found that although the variance is reduced, the gain in efficiency is restricted by the increased computational cost. Yet, this development not only extends the scope of the fermionic shadow wave function, but also facilitates highly accurate quantum Monte Carlo simulations previously thought not feasible.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- Carl Zeiss Foundation; Graduate School of Excellence Materials Science; Max-Planck Graduate Center; USDOE; USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- AC52-07NA27344
- OSTI ID:
- 1884648
- Alternate ID(s):
- OSTI ID: 1180284
- Report Number(s):
- LLNL-JRNL-655716; 776054
- Journal Information:
- Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics, Journal Name: Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics Journal Issue: 5 Vol. 90; ISSN 1539-3755
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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