Dual-fermion approach to the Anderson-Hubbard model
Journal Article
·
· Physical Review. B
- Univ. of Gottingen (Germany); DOE/OSTI
- Louisiana State Univ., Baton Rouge, LA (United States); Louisiana State Univ., Baton Rouge, LA (United States). Center for Computation and Technology
- Univ. of Gottingen (Germany)
In this work, we apply the recently developed dual-fermion algorithm for disordered interacting systems to the Anderson-Hubbard model. This algorithm is compared with dynamical cluster approximation calculations for a one-dimensional system to establish the quality of the approximation in comparison with an established cluster method. We continue with a three-dimensional (3D) system and look at the antiferromagnetic, Mott, and Anderson localization transitions. The dual-fermion approach leads to quantitative as well as qualitative improvement of the dynamical mean-field results, and it allows one to calculate the hysteresis in the double occupancy in 3D, taking into account nonlocal correlations.
- Research Organization:
- Louisiana State Univ., Baton Rouge, LA (United States)
- Sponsoring Organization:
- National Science Foundation (NSF); USDOE; USDOE Office of Science (SC)
- Grant/Contract Number:
- SC0005274
- OSTI ID:
- 1535839
- Alternate ID(s):
- OSTI ID: 1339771
- Journal Information:
- Physical Review. B, Journal Name: Physical Review. B Journal Issue: 4 Vol. 95; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Diagrammatic routes to nonlocal correlations beyond dynamical mean field theory
|
journal | May 2018 |
| Diagrammatic routes to nonlocal correlations beyond dynamical mean field theory | text | January 2017 |
Similar Records
Two-dimensional Anderson-Hubbard model in the DMFT + {Sigma} approximation
Mott-Hubbard transition and Anderson localization: A generalized dynamical mean-field theory approach
Hole Localization in the One-Dimensional Doped Anderson-Hubbard Model
Journal Article
·
Sun Feb 14 23:00:00 EST 2010
· Journal of Experimental and Theoretical Physics
·
OSTI ID:21443406
Mott-Hubbard transition and Anderson localization: A generalized dynamical mean-field theory approach
Journal Article
·
Sat Mar 15 00:00:00 EDT 2008
· Journal of Experimental and Theoretical Physics
·
OSTI ID:21075583
Hole Localization in the One-Dimensional Doped Anderson-Hubbard Model
Journal Article
·
Fri Jul 04 00:00:00 EDT 2008
· Physical Review Letters
·
OSTI ID:21134097