16 citations · 43 across the 8 of their papers we have counts for
8 papers
CP1|1 nonlinear sigma model vs strong electron correlations
E. A. Kochetov, A. Ferraz
The nonlinear sigma model targeted on the coset supermanifold is derived in an attempt to describe the quasiclassical low-energy effective action for the…
The Ising version of the t-J model
Maciej M. Maska, Marcin Mierzejewski, Evgeny Kochetov
The t-J model is analysed in the limit of strong anisotropy, where the transverse components of electron spin are neglected. We propose a slave-particle-type approach that is valid…
Effective spin-fermion model for strongly correlated electrons
A. Ferraz, E. Kochetov
A modified spin-fermion model is proposed to describe the physics of the underdoped phase of the t-J model of strongly correlated electrons
Gauge Invariance and Spinon-Dopon Confinement in the t-J Model: implications for Fermi Surface Reconstruction in the Cuprates
Alvaro Ferraz, Evgueny Kochetov
We discuss the application of the two-band spin-dopon representation of the t-J model to address the issue of the Fermi surface reconstruction observed in the cuprates. We show tha…
Comment on "Z2-slave-spin theory for strongly correlated fermions" + Reply to the Reply to the "Comment on ?Z2-slave-spin theory for strongly correlated" fermions?
Alvaro Ferraz, Evgeny Kochetov
We discusss the results published by Ruegg et al in PRB 81, 155118 (2010).
Effective action for strongly correlated electron systems
A. Ferraz, E. A. Kochetov
The su(2|1) coherent-state path-integral representation of the partition function of the t - J model of strongly correlated electrons is derived at finite doping. The emergent effe…