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Thermal Density Functional Theory: Time-Dependent Linear Response and Approximate Functionals from the Fluctuation-Dissipation Theorem

Journal Article · · Physical Review Letters
 [1];  [2];  [3]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of California, Berkeley, CA (United States). Department of Chemistry
  2. Univ. of California, Irvine, CA (United States). Dept. of Physics and Astronomy
  3. Univ. of California, Irvine, CA (United States). Dept. of Chemistry and Dept. of Physics and Astronomy
We present that the van Leeuwen proof of linear-response time-dependent density functional theory (TDDFT) is generalized to thermal ensembles. This allows generalization to finite temperatures of the Gross-Kohn relation, the exchange-correlation kernel of TDDFT, and fluctuation dissipation theorem for DFT. Finally, this produces a natural method for generating new thermal exchange-correlation approximations.
Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-07NA27344; FG02-97ER25308
OSTI ID:
1389980
Alternate ID(s):
OSTI ID: 1256152
Report Number(s):
LLNL-JRNL--689945
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 23 Vol. 116; ISSN 0031-9007; ISSN PRLTAO
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Warming Up Density Functional Theory book November 2017
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Functional theories of thermoelectric phenomena journal December 2016
Multiscale approach for determining hydrogen diffusivity in zirconium journal October 2018
Development of formalisms based on locally coupled open subsystems for calculations in molecular electronic structure and dynamics journal December 2018
Ab initio Exchange-Correlation Free Energy of the Uniform Electron Gas at Warm Dense Matter Conditions journal September 2017
Ab initio Path Integral Monte Carlo Results for the Dynamic Structure Factor of Correlated Electrons: From the Electron Liquid to Warm Dense Matter journal December 2018
Functional theories of thermoelectric phenomena text January 2016
Ab initio Exchange-Correlation Free Energy of the Uniform Electron Gas at Warm Dense Matter Conditions text January 2017

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