Quantum Monte Carlo determination of the principal Hugoniot of deuterium
- Univ. Paris-Saclay, Gif-sur-Yvette (France)
- Univ. of Grenoble (France); Inst. Laue Langevin, Grenoble (France)
- Univ. of Illinois at Urbana-Champaign, IL (United States)
Here, we present coupled electron-ion Monte Carlo results for the principal Hugoniot of deuterium together with an accurate study of the initial reference state of shock-wave experiments. We discuss the influence of nuclear quantum effects, thermal electronic excitations, and the convergence of the potential energy surface by wave-function optimization within variational Monte Carlo and projection quantum Monte Carlo methods. Compared to a previous study, our calculations also include low pressure-temperature (P,T) conditions resulting in close agreement with experimental data, while our revised results at higher (P,T) conditions still predict a more compressible Hugoniot than experimentally observed.
- Research Organization:
- Univ. of Illinois at Urbana-Champaign, IL (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA); European Union’s Horizon 2020; Foundation NanoSciences Grenoble; Agence Nationale de la Recherche (ANR); National Science Foundation (NSF); State of Illinois; CIMENT
- Grant/Contract Number:
- NA0001789; 676531; 824158; OCI 07-25070; CPER07-13 CIRA; ANR-10-EQPX-29-01
- OSTI ID:
- 1850287
- Journal Information:
- Physical Review. B, Vol. 102, Issue 14; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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