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Title: Dynamical mean-field theory, density-matrix embedding theory, and rotationally invariant slave bosons: A unified perspective

Journal Article · · Physical Review B
 [1];  [1];  [2]
  1. Rutgers Univ., Piscataway, NJ (United States). Physics and Astronomy Dept.
  2. Rutgers Univ., Piscataway, NJ (United States). Physics and Astronomy Dept.; Brookhaven National Lab. (BNL), Upton, NY (United States). Condensed Matter Physics and Materials Science Dept.

In this paper, we present a unified perspective on dynamical mean-field theory (DMFT), density-matrix embedding theory (DMET), and rotationally invariant slave bosons (RISB). We show that DMET can be regarded as a simplification of the RISB method where the quasiparticle weight is set to unity. Finally, this relation makes it easy to transpose extensions of a given method to another: For instance, a temperature-dependent version of RISB can be used to derive a temperature-dependent free-energy formula for DMET.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012704; FG02-99ER45761
OSTI ID:
1425076
Alternate ID(s):
OSTI ID: 1414852
Report Number(s):
BNL-203221-2018-JAAM; TRN: US1802033
Journal Information:
Physical Review B, Vol. 96, Issue 23; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 26 works
Citation information provided by
Web of Science

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Cited By (9)

Multiple impurities and combined local density approximations in site-occupation embedding theory journal November 2018
Energy-weighted density matrix embedding of open correlated chemical fragments journal July 2019
Projected density matrix embedding theory with applications to the two-dimensional Hubbard model journal August 2019
Correlated materials design: prospects and challenges journal December 2018
Rigorous wave function embedding with dynamical fluctuations journal December 2018
Toward a predictive theory of correlated materials journal July 2018
Correlated materials design: prospects and challenges text January 2018
Rigorous wave function embedding with dynamical fluctuations text January 2018
Dynamical configuration interaction: Quantum embedding that combines wave functions and Green's functions text January 2018