51 citations · 86 across the 3 of their papers we have counts for
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Gutzwiller-RVB Theory of High Temperature Superconductivity: Results from Renormalised Mean Field Theory and Variational Monte Carlo Calculations
B. Edegger, V. N. Muthukumar, C. Gros
We review the Resonating Valence Bond (RVB) theory of high temperatur e superconductivity using Gutzwiller projected wave functions that incorporate strong correlations. After a ge…
Spontaneous breaking of the Fermi surface symmetry in the t-J model: a numerical study
Bernhard Edegger, V. N. Muthukumar, Claudius Gros
We present a variational Monte Carlo (VMC) study of spontaneous Fermi surface symmetry breaking in the t-J model. We find that the variational energy of a Gutzwiller projected Ferm…
Creation and destruction of a spin gap in weakly coupled quarter-filled ladders
B. Edegger, H. G. Evertz, R. M. Noack
We investigate weakly coupled quarter-filled ladders with model parameters relevant for NaV_2O_5 using density-matrix renormalization group calculations on an extended Hubbard mode…
Charge order induced by electron-lattice interaction in NaV2O5
B. Edegger, H. G. Evertz, R. M. Noack
We present Density Matrix Renormalization Group calculations of the ground-state properties of quarter-filled ladders including static electron-lattice coupling. Isolated ladders a…
On the evaluation of matrix elements in partially projected wave functions
N. Fukushima, B. Edegger, V. N. Muthukumar +1
We generalize the Gutzwiller approximation scheme to the calculation of nontrivial matrix elements between the ground state and excited states. In our scheme, the normalization of…