Second-order dual fermion for multi-orbital systems
نویسندگان
چکیده
منابع مشابه
Dual fermion method for disordered electronic systems
H. Terletska,1,* S.-X. Yang,2,3 Z. Y. Meng,2,3 J. Moreno,2,3 and M. Jarrell2,3 1Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA 2Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, USA 3Center for Computation and Technology, Louisiana State University, Baton Rouge, Louisiana 70803, U...
متن کاملA Pure First Order Representation for Undamped Second Order Descriptor Systems
The aim of this paper is to analyze the undamped second order descriptor systems to show the possibility of transform an undamped second order descriptor system to a pure first order descriptor system ,on different ways, while stating some of its benefits. Meanwhile we will introduce pure first order systems and undamped second order systems and indicate that under some assumptions every undamp...
متن کاملSecond order phase field asymptotics for multi-component systems
We derive a phase field model which approximates a sharp interface model for solidification of a multicomponent alloy to second order in the interfacial thickness ε. Since in numerical computations for phase field models the spatial grid size has to be smaller than ε the new approach allows for considerably more accurate phase field computations than have been possible so far. In the classical ...
متن کاملSuperconductivity in the Orbital Degenerate Model for Heavy Fermion Systems
Magnetism and superconductivity of new heavy fermion compounds CeTIn5 (T=Co, Rh and Ir) are investigated by applying fluctuation exchange approximation to an orbital degenerate Hubbard model. The superconducting phase with dx2−y2 -symmetry is found to appear next to the antiferromagnetic phase with increasing the orbital splitting energy. The present theory suggests that the orbital splitting e...
متن کاملDual-fermion approach to interacting disordered fermion systems
S.-X. Yang,1,2,* P. Haase,3 H. Terletska,1,4 Z. Y. Meng,1,2 T. Pruschke,3 J. Moreno,1,2 and M. Jarrell1,2 1Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, USA 2Center for Computation and Technology, Louisiana State University, Baton Rouge, Louisiana 70803, USA 3Department of Physics, University of Göttingen, 37077 Göttingen, Germany 4Condensed Matt...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Physics: Condensed Matter
سال: 2021
ISSN: 0953-8984,1361-648X
DOI: 10.1088/1361-648x/abd9ed