29 citations · 33 across the 2 of their papers we have counts for
2 papers
cond-mat.mes-hall2008★ 4 cited
Dyson-Maleev representation of nonlinear sigma-models
D. A. Ivanov, M. A. Skvortsov
For nonlinear sigma-models in the unitary symmetry class, the non-linear target space can be parameterized with cubic polynomials. This choice of coordinates has been known previou…
cond-mat.str-el2007★ 29 cited
Dimer phases in quantum antiferromagnets with orbital degeneracy
G. Jackeli, D. A. Ivanov
We study and solve the ground-state problem of a microscopic model for a family of orbitally degenerate quantum magnets. The orbital degrees of freedom are assumed to have directio…