supported by the National Natural Science Foundation of China(Grant No.11374163);the National Basic Research Program of China(Grant No.2012CB921900)
We study the underlying symmetry in a spin-orbit coupled tight-binding model with Hubbard interaction.It is shown that,in the absence of the on-site interaction,the system possesses the SU(2)symmetry arising from the ...
supported by the National Basic Research Program of China(2009CB929402)
By generalizing the Holstein-Primakoff realization and the Dyson realization of the Lie algebra SU(2),various realizations of the deformed angular momentum algebra Rc0,c1,c2q,s,a five-parameter deformed SU(2) by combi...