82 citations · 545 across the 24 of their papers we have counts for
24 papers
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…
Determining the underlying Fermi surface of strongly correlated superconductors
Claudius Gros, Bernhard Edegger, V. N. Muthukumar +1
The notion of a Fermi surface (FS) is one of the most ingenious concepts developed by solid state physicists during the past century. It plays a central role in our understanding o…
Electronic structure of strongly correlated d-wave superconductors
Bernhard Edegger, V. N. Muthukumar, Claudius Gros +1
We study the electronic structure of a strongly correlated d-wave superconducting state. Combining a renormalized mean field theory with direct calculation of matrix elements, we o…
Particle number renormalization in almost half filled Mott Hubbard superconductors
Bernhard Edegger, Noboru Fukushima, Claudius Gros +1
The effects of the Gutzwiller projection on a BCS wave function with varying particle number are considered. We show that a fugacity factor has to be introduced in these wave funct…
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…