Effective Theory For Quantum Spin System In Low Dimension - Beyond Long-Wavelength Limit
arXiv:cond-mat/0101466 · doi:10.1142/S0217984902003713
Abstract
An effective theory for quantum spin system in low dimension is constructed in the finite-q regime. It is shown that there are field configurations for which Wess-Zumino term contributes to the partition functions as topological term for ferromagnet as well as antiferromagnet in both one and two dimensional lattice,in contrast to the long wave length regime.
8 pages (Latex), no figures
Cited by in corpus (3)
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