269 citations · 269 across the 3 of their papers we have counts for
2 papers
cond-mat.str-el1998
Elementary excitations of magnetically ordered systems with orbital degeneracy
A. Joshi, M. Ma, F. Mila +2
The Holstein-Primakoff transformation is generalized to develop a quantum flavor wave theory for spin systems with orbital degeneracy. Elementary excitations consist of spin, orbit…
cond-mat.str-el1998★ 269 cited
SU(4) Theory for Spin Systems with Orbital Degeneracy
Y. Q. Li, Michael Ma, D. N. Shi +1
The isotropic limit of spin systems with orbital degeneracy is shown to have global SU(4) symmetry. On many 2D lattices, the ground state does not posses long range order, which ma…