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cond-mat1994★ 212 cited
Magnetic order and disorder in the frustrated quantum Heisenberg antiferromagnet in two dimensions
H. J. Schulz, T. A. L. Ziman, D. Poilblanc
We have performed a numerical investigation of the ground state properties of the frustrated quantum Heisenberg antiferromagnet on the square lattice (`` model''), using e…
cond-mat1993★ 155 cited
Poisson versus GOE statistics in integrable and non-integrable quantum hamiltonian
Didier Poilblanc, Timothy Ziman, Jean Bellissard +2
We calculate the level statistics by finding the eigenvalue spectrum for a variety of one-dimensional many-body models, namely the Heisenberg chain, the t-J model and the Hubbard m…