15 citations · 15 across the 2 of their papers we have counts for
2 papers
cond-mat.str-el2007
Low-energy effective representation of the Gutzwiller-projected BCS Hamiltonian close to half filling
Evgueny Kochetov, Alvaro Ferraz, Rafael T. Pepino
We investigate analytically a connection between the t-J model and the strongly correlated Bardeen-Cooper-Schrieffer (BCS) Hamiltonian, with the effect of strong electron correlati…
cond-mat.str-el2007★ 15 cited
Doped carrier formulation of the t-J model: the projection constraint and the effective Kondo-Heisenberg lattice representation
Rafael T. Pepino, Alvaro Ferraz, Evgueny Kochetov
We show that the recently proposed doped carrier Hamiltonian formulation of the t-J model should be complemented with the constraint that projects out the unphysical states. With t…