Dual fermion method for disordered electronic systems
نویسندگان
چکیده
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, USA (Received 16 October 2012; published 30 April 2013)
منابع مشابه
Electronic Transmission Wave Function of Disordered Graphene by Direct Method and Green's Function Method
We describe how to obtain electronic transport properties of disordered graphene, including the tight binding model and nearest neighbor hopping. We present a new method for computing, electronic transport wave function and Greens function of the disordered Graphene. In this method, based on the small rectangular approximation, break up the potential barriers in to small parts. Then using the f...
متن کاملTight- binding study of electronic band structure of anisotropic honeycomb lattice
The two-dimensional structure of graphene, consisting of an isotropic hexagonal lattice of carbon atoms, shows fascinating electronic properties, such as a gapless energy band and Dirac fermion behavior of electrons at fermi surface. Anisotropy can be induced in this structure by electrochemical pressure. In this article, by using tight-binding method, we review anisotropy effects in the elect...
متن کاملMean-field embedding of the dual-fermion approach for correlated electron systems.
To reduce the rapidly growing computational cost of the dual-fermion lattice calculation with increasing system size, we introduce two embedding schemes. One is the real fermion embedding, and the other is the dual-fermion embedding. Our numerical tests show that the real fermion and dual-fermion embedding approaches converge to essentially the same result. The application on the Anderson disor...
متن کاملNeural multigrid for gauge theories and other disordered systems
We present evidence that multigrid works for wave equations in disordered systems, e.g. in the presence of gauge fields, no matter how strong the disorder, but one needs to introduce a " neural computations " point of view into large scale simulations: First, the system must learn how to do the simulations efficiently, then do the simulation (fast). The method can also be used to provide smooth...
متن کاملNeural multigrid for gauge theoriesand other disordered systemsM
We present evidence that multigrid works for wave equations in disordered systems, e.g. in the presence of gauge elds, no matter how strong the disorder, but one needs to introduce a \neural computations" point of view into large scale simulations: First, the system must learn how to do the simulations eeciently, then do the simulation (fast). The method can also be used to provide smooth inter...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2013