SU(2) gauge theory of the Hubbard model and application to the honeycomb lattice

2007 ◽  
Vol 76 (3) ◽  
Author(s):  
Michael Hermele
Keyword(s):  
Gauge Theory ◽  
Hubbard Model ◽  
Honeycomb Lattice

scholarly journals Kane-Mele-Hubbard model on theπ-flux honeycomb lattice

2014 ◽  
Vol 90 (7) ◽  
Author(s):  
Martin Bercx ◽  
Martin Hohenadler ◽  
Fakher F. Assaad
Keyword(s):  
Hubbard Model ◽  
Honeycomb Lattice

scholarly journals Effective spin couplings in the Mott insulator of the honeycomb lattice Hubbard model

2012 ◽  
Vol 14 (11) ◽  
pp. 115027 ◽  
Author(s):  
Hong-Yu Yang ◽  
A Fabricio Albuquerque ◽  
Sylvain Capponi ◽  
Andreas M Läuchli ◽  
Kai Phillip Schmidt
Keyword(s):  
Hubbard Model ◽  
Mott Insulator ◽  
Honeycomb Lattice ◽  
Effective Spin

scholarly journals Antiferromagnetism in the Hubbard model on the honeycomb lattice: A two-particle self-consistent study

2015 ◽  
Vol 92 (4) ◽  
Author(s):  
S. Arya ◽  
P. V. Sriluckshmy ◽  
S. R. Hassan ◽  
A.-M. S. Tremblay
Keyword(s):  
Hubbard Model ◽  
Honeycomb Lattice ◽  
Self Consistent

scholarly journals Effects of correlations on honeycomb lattice in ionic-Hubbard model

2015 ◽  
Vol 379 (14-15) ◽  
pp. 1053-1056 ◽  
Author(s):  
M. Ebrahimkhas ◽  
Z. Drezhegrighash ◽  
E. Soltani
Keyword(s):  
Hubbard Model ◽  
Honeycomb Lattice ◽  
Ionic Hubbard Model

MOTT TRANSITION IN THE HALF-FILLED HUBBARD MODEL ON THE HONEYCOMB LATTICE WITHIN COHERENT POTENTIAL APPROXIMATION

2013 ◽  
Vol 27 (07) ◽  
pp. 1350046 ◽  
Author(s):  
DUC ANH LE
Keyword(s):  
Hubbard Model ◽  
Quantum Monte Carlo ◽  
Mean Field Theory ◽  
Mean Field ◽  
Coulomb Repulsion ◽  
Mott Transition ◽  
Coherent Potential Approximation ◽  
Honeycomb Lattice ◽  
Potential Approximation ◽  
Good Agreement

Using the coherent potential approximation, we study zero-temperature Mott transition in the half-filled Hubbard model on the honeycomb lattice. Although a pseudogap is already present for the non-interacting case, the gap will not occur until the onsite Coulomb repulsion exceeds a critical value U ≈ 3.6t, where t is the hopping integral. When increasing U/t, the density of states at the Fermi energy first goes up gradually from zero and after reaching a maximum it goes down to zero again. Our calculated critical interaction UC/t is in very good agreement with the ones obtained by quantum Monte Carlo simulation and cluster dynamical mean-field theory.

scholarly journals Planar Script N = 4 gauge theory and the Hubbard model

2006 ◽  
Vol 2006 (03) ◽  
pp. 018-018 ◽  
Author(s):  
Adam Rej ◽  
Didina Serban ◽  
Matthias Staudacher
Keyword(s):  
Gauge Theory ◽  
Hubbard Model
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