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cond-mat.str-el2010★ 40 cited
Fermionic theory for quantum antiferromagnets with spin S > 1/2
Zheng-Xin Liu, Yi Zhou, Tai-Kai Ng
The fermion representation for S = 1/2 spins is generalized to spins with arbitrary magnitudes. The symmetry properties of the representation is analyzed where we find that the par…
quant-ph2010★ 10 cited
Photonic analogue of Josephson effect in a dual-species optical-lattice cavity
Soi-Chan Lei, Tai-Kai Ng, Ray-Kuang Lee
We extend the idea of quantum phase transitions of light in the photonic Bose-Hubbard model with interactions to two atomic species by a self-consistent mean field theory. The exci…
cond-mat.mtrl-sci2010
Out of plane screening and dipolar interactions in heterostructures
Cheung Chan, T. K. Ng
Out-of-plane screening (OPS) is expected to occur generally in metal-semiconductor interfaces but this aspect has been overlooked in previous studies. In this paper we study the ef…