Real Space Renormalization Group Study of the S=1/2 XXZ Chains with Fibonacci Exchange Modulation

Details Real Space Renormalization Group Study of the S=1/2 XXZ Chains with Fibonacci Exchange Modulation Real Space Renormalization Group Study of the S=1/2 XXZ Chains with Fibonacci Exchange Modulation

2004-04-26

arxiv.org/abs/cond-mat/0404606v2

J. Phys. Soc. Jpn. 73 2296-2304 (2004)

Physics

Condensed Matter

Strongly Correlated Electrons

9 pages, 9 figures

Scientific paper

10.1143/JPSJ.73.2296

Ground state properties of the S=1/2 antiferromagnetic XXZ chain with Fibonacci exchange modulation are studied using the real space renormalization group method for strong modulation. The quantum dynamical critical behavior with a new universality class is predicted in the isotropic case. Combining our results with the weak coupling renormalization group results by Vidal et al., the ground state phase diagram is obtained.

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