Dynamical mean-field theory, density-matrix embedding theory, and rotationally invariant slave bosons: A unified perspective
Journal Article
·
· Physical Review B
- 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.
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
Cited by: 26 works
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