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cond-mat.str-el2011
Coupled-cluster calculations for the ground- and excited-states of the spin-half XXZ model
Mohammad Merdan, Y. Xian
The coupled-cluster method is applied to the spin-1/2 antiferromagnetic XXZ model on a square lattice by employing an approximation which contains two-body long-range correlations…
cond-mat.str-el2011★ 7 cited
Longitudinal excitations in quantum antiferromagnets
Y Xian
By extending our recently proposed magnon-density-waves to low dimensions, we investigate, using a microscopic many-body approach, the longitudinal excitations of the quasi-one-dim…