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

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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.
9 pages, 9 figures

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Strongly Correlated Electrons, Disordered Systems and Neural Networks

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http://salesiana.dossiersoluciones.com/handle/123456789/23820

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0404606
 http://arxiv.org/abs/cond-mat/0404606
 J. Phys. Soc. Jpn. 73 2296-2304 (2004)
 doi:10.1143/JPSJ.73.2296

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arXiv