Dynamical meanfield theory, densitymatrix embedding theory, and rotationally invariant slave bosons: A unified perspective
In this paper, we present a unified perspective on dynamical meanfield theory (DMFT), densitymatrix 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 temperaturedependent version of RISB can be used to derive a temperaturedependent freeenergy formula for DMET.
 Authors:

^{[1]};
^{[1]};
^{[2]}
 Rutgers Univ., Piscataway, NJ (United States). Physics and Astronomy Dept.
 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.
 Publication Date:
 Report Number(s):
 BNL2032212018JAAM
Journal ID: ISSN 24699950; TRN: US1802033
 Grant/Contract Number:
 SC0012704; FG0299ER45761
 Type:
 Accepted Manuscript
 Journal Name:
 Physical Review B
 Additional Journal Information:
 Journal Volume: 96; Journal Issue: 23; Journal ID: ISSN 24699950
 Publisher:
 American Physical Society (APS)
 Research Org:
 Brookhaven National Laboratory (BNL), Upton, NY (United States)
 Sponsoring Org:
 USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC22)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
 OSTI Identifier:
 1425076
 Alternate Identifier(s):
 OSTI ID: 1414852
Ayral, Thomas, Lee, TsungHan, and Kotliar, Gabriel. Dynamical meanfield theory, densitymatrix embedding theory, and rotationally invariant slave bosons: A unified perspective. United States: N. p.,
Web. doi:10.1103/PhysRevB.96.235139.
Ayral, Thomas, Lee, TsungHan, & Kotliar, Gabriel. Dynamical meanfield theory, densitymatrix embedding theory, and rotationally invariant slave bosons: A unified perspective. United States. doi:10.1103/PhysRevB.96.235139.
Ayral, Thomas, Lee, TsungHan, and Kotliar, Gabriel. 2017.
"Dynamical meanfield theory, densitymatrix embedding theory, and rotationally invariant slave bosons: A unified perspective". United States.
doi:10.1103/PhysRevB.96.235139. https://www.osti.gov/servlets/purl/1425076.
@article{osti_1425076,
title = {Dynamical meanfield theory, densitymatrix embedding theory, and rotationally invariant slave bosons: A unified perspective},
author = {Ayral, Thomas and Lee, TsungHan and Kotliar, Gabriel},
abstractNote = {In this paper, we present a unified perspective on dynamical meanfield theory (DMFT), densitymatrix 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 temperaturedependent version of RISB can be used to derive a temperaturedependent freeenergy formula for DMET.},
doi = {10.1103/PhysRevB.96.235139},
journal = {Physical Review B},
number = 23,
volume = 96,
place = {United States},
year = {2017},
month = {12}
}