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cond-mat1998★ 33 cited
Frustrated antiferromagnetic quantum spin chains for spin length S > 1
R. Roth, U. Schollwoeck
We investigate frustrated antiferromagnetic Heisenberg quantum spin chains at T=0 for S=3/2 and S=2 using the DMRG method. We localize disorder and Lifshitz points, confirming that…
cond-mat1996★ 51 cited
Variational and DMRG studies of the Frustrated Antiferromagnetic Heisenberg S=1 Quantum Spin Chain
A. Kolezhuk, R. Roth, U. Schollwoeck
We study a frustrated antiferromagnetic isotropic Heisenberg chain using a variational ansatz and the DMRG. At , there is a disorder point of the second kind, m…