scholarly journals Dynamical mean-field theory versus second-order perturbation theory for the trapped two-dimensional Hubbard antiferromagnet

2011 ◽  
Vol 84 (15) ◽  
Author(s):  
Andreas D. Pfister ◽  
Eberhard Jakobi ◽  
Tobias Gottwald ◽  
Peter G. J. van Dongen
Keyword(s):  
Field Theory ◽  
Perturbation Theory ◽  
Mean Field Theory ◽  
Mean Field ◽  
Order Perturbation ◽  
Dynamical Mean Field Theory ◽  
Order Perturbation Theory ◽  
Two Dimensional ◽  
Theory Versus ◽  
Second Order Perturbation Theory

scholarly journals Beyond extended dynamical mean-field theory: Dual boson approach to the two-dimensional extended Hubbard model

2014 ◽  
Vol 90 (23) ◽  
Author(s):  
Erik G. C. P. van Loon ◽  
Alexander I. Lichtenstein ◽  
Mikhail I. Katsnelson ◽  
Olivier Parcollet ◽  
Hartmut Hafermann
Keyword(s):  
Field Theory ◽  
Hubbard Model ◽  
Mean Field Theory ◽  
Mean Field ◽  
Dynamical Mean Field Theory ◽  
Two Dimensional ◽  
Extended Hubbard Model
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