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Title: Unitary evolution with fluctuations and dissipation

Abstract

We illustrate an extension of the classical Langevin equation to a quantum formulation of the treatment of dissipation and fluctuations of all collective degrees of freedom with unitary evolution of a many-fermion system within an extension of the time-dependent density functional theory. Furthermore, we reveal the method by computing the distribution of fission fragment yields for 258Fm in a quantum hydrodynamic approach and a typical trajectory with full unrestricted density functional theory augmented with dissipation and fluctuations.

Authors:
 [1];  [1]; ORCiD logo [2]
  1. Univ. of Washington, Seattle, WA (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Scientific User Facilities Division; National Energy Research Scientific Computing Center (NERSC); Swiss National Supercomputing Centre (CSCS)
OSTI Identifier:
1558045
Alternate Identifier(s):
OSTI ID: 1545475
Report Number(s):
LA-UR-18-24160
Journal ID: ISSN 2469-9985; PRVCAN
Grant/Contract Number:  
89233218CNA000001; AC52-06NA25396; AC05-00OR22725; AC02-05CH11231; FG02-97ER-41014; NA0003841
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 100; Journal Issue: 1; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Bulgac, Aurel, Jin, Shi, and Stetcu, Ionel. Unitary evolution with fluctuations and dissipation. United States: N. p., 2019. Web. doi:10.1103/PhysRevC.100.014615.
Bulgac, Aurel, Jin, Shi, & Stetcu, Ionel. Unitary evolution with fluctuations and dissipation. United States. doi:10.1103/PhysRevC.100.014615.
Bulgac, Aurel, Jin, Shi, and Stetcu, Ionel. Wed . "Unitary evolution with fluctuations and dissipation". United States. doi:10.1103/PhysRevC.100.014615.
@article{osti_1558045,
title = {Unitary evolution with fluctuations and dissipation},
author = {Bulgac, Aurel and Jin, Shi and Stetcu, Ionel},
abstractNote = {We illustrate an extension of the classical Langevin equation to a quantum formulation of the treatment of dissipation and fluctuations of all collective degrees of freedom with unitary evolution of a many-fermion system within an extension of the time-dependent density functional theory. Furthermore, we reveal the method by computing the distribution of fission fragment yields for 258Fm in a quantum hydrodynamic approach and a typical trajectory with full unrestricted density functional theory augmented with dissipation and fluctuations.},
doi = {10.1103/PhysRevC.100.014615},
journal = {Physical Review C},
number = 1,
volume = 100,
place = {United States},
year = {2019},
month = {7}
}

Journal Article:
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This content will become publicly available on July 24, 2020
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