scholarly journals Ground state of the frustrated Hubbard model within DMFT: energetics of Mott insulator and metal from ePT and QMC

2005 ◽  
Vol 359-361 ◽  
pp. 648-650 ◽  
Author(s):  
N. Blümer ◽  
E. Kalinowski
Keyword(s):  
Hubbard Model ◽  
Ground State ◽  
Mott Insulator

scholarly journals Bose-Hubbard model in a strong effective magnetic field: Emergence of a chiral Mott insulator ground state

2012 ◽  
Vol 85 (4) ◽  
Author(s):  
Arya Dhar ◽  
Maheswar Maji ◽  
Tapan Mishra ◽  
R. V. Pai ◽  
Subroto Mukerjee ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Hubbard Model ◽  
Ground State ◽  
Mott Insulator ◽  
Effective Magnetic Field ◽  
Field Emergence

scholarly journals Time-reversal symmetry breaking superconducting ground state in the doped Mott insulator on the honeycomb lattice

2013 ◽  
Vol 88 (15) ◽  
Author(s):  
Zheng-Cheng Gu ◽  
Hong-Chen Jiang ◽  
D. N. Sheng ◽  
Hong Yao ◽  
Leon Balents ◽  
...  
Keyword(s):  
Symmetry Breaking ◽  
Ground State ◽  
Time Reversal ◽  
Mott Insulator ◽  
Honeycomb Lattice ◽  
Time Reversal Symmetry ◽  
Doped Mott Insulator

A controlled route to the competing phases and the single-particle spectral function in the ground state of the 2D Hubbard model

2007 ◽  
Vol 460-462 ◽  
pp. 248-251
Author(s):  
Werner Hanke ◽  
Markus Aichhorn ◽  
Enrico Arrigoni ◽  
Michael Potthoff
Keyword(s):  
Hubbard Model ◽  
Spectral Function ◽  
Single Particle ◽  
Ground State

scholarly journals Off-Diagonal Long-Range Order in Generalized Hubbard Models

1997 ◽  
Vol 11 (11) ◽  
pp. 1311-1335 ◽  
Author(s):  
Kristel Michielsen ◽  
Hans De Raedt
Keyword(s):  
Density Matrix ◽  
Hubbard Model ◽  
Long Range ◽  
Ground State ◽  
Size Dependence ◽  
State Energy ◽  
System Size ◽  
Range Order ◽  
Long Range Order ◽  
Hubbard Models

We present stochastic diagonalization results for the ground-state energy and the largest eigenvalue of the two-fermion density matrix of the BCS reduced Hamiltonian, the Hubbard model, and the Hubbard model with correlated hopping. The system-size dependence of this eigenvalue is used to study the existence of Off-Diagonal Long-Range Order in these models. We show that the model with correlated hopping and repulsive on-site interaction can exhibit Off-Diagonal Long-Range Order. Analytical results for some special limiting cases indicate that Off-Diagonal Long-Range Order not always implies superconductivity.

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