Hubbard model on the triangular lattice using dynamical cluster approximation and dual fermion methods
نویسندگان
چکیده
منابع مشابه
Unconventional superconductivity on the triangular lattice Hubbard model
Kuang Shing Chen,1,* Zi Yang Meng,1,2,† Unjong Yu,3 Shuxiang Yang,1,2 Mark Jarrell,1,2 and Juana Moreno1,2 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 3GIST-College, Gwangju Institute of Science and Technology, Gwangju 500-712, Korea (Rece...
متن کاملDual fermion dynamical cluster approach for strongly correlated systems
S.-X. Yang,1 H. Fotso,1 H. Hafermann,2 K.-M. Tam,1 J. Moreno,1 T. Pruschke,3 and M. Jarrell1 1Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, USA 2Centre de Physique Théorique, École Polytechnique, CNRS, FR-91128 Palaiseau Cedex, France 3Department of Physics, University of Göttingen, GE-37077 Göttingen, Germany (Received 10 May 2011; revised manus...
متن کاملRandom Cluster Models on the Triangular Lattice
We study percolation and the random cluster model on the triangular lattice with 3-body interactions. Starting with percolation, we generalize the star–triangle transformation: We introduce a new parameter (the 3-body term) and identify configurations on the triangles solely by their connectivity. In this new setup, necessary and sufficient conditions are found for positive correlations and thi...
متن کاملDynamical cluster approximation study of the anisotropic two-orbital Hubbard model.
We investigate the properties of a two-orbital Hubbard model with unequal bandwidths on the square lattice in the framework of the dynamical cluster approximation (DCA) combined with a continuous-time quantum Monte Carlo algorithm. We explore the effect of short-range spatial fluctuations on the nature of the metal-insulator transition and the possible occurrence of an orbital-selective Mott tr...
متن کاملDynamical Fermion on Random-Block Lattice
The problem of formulating the chiral fermion field on space-time lattices has been discussed from the viewpoint of funtional integrals [1]. I argued that the functional integral measure provided by any single lattice ( hypercubical lattice or random lattice ) is not sufficent to yield fermionic functional integrals to agree with the continuum field theory. My proposal of using an ensemble of r...
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: Physical Review B
سال: 2008
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.78.205117