84 citations · 304 across the 14 of their papers we have counts for
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Spin-3/2 random quantum antiferromagnetic chains
A. Saguia, B. Boechat, M. A. Continentino
We use a modified perturbative renormalization group approach to study the random quantum antiferromagnetic spin-3/2 chain. We find that in the case of rectangular distributions th…
Phase diagram of the random Heisenberg antiferromagnetic spin-1 chain
A. Saguia, B. Boechat, M. A. Continentino
We present a new perturbative real space renormalization group (RG) to study random quantum spin chains and other one-dimensional disordered quantum systems. The method overcomes p…
Role of Disorder on the Quantum Critical Point of a Model for Heavy Fermions
T. G. Rappoport, A. Saguia, B. Boechat +1
A zero temperature real space renormalization group (RG) approach is used to investigate the role of disorder near the quantum critical point (QCP) of a Kondo necklace (XY-KN) mode…
Breakdown of the perturbative renormalization group for S >= 1 random antiferromagnetic spin chains
A. Saguia, B. Boechat, M. A. Continentino +1
We investigate the application of a perturbative renormalization group (RG) method to random antiferromagnetic Heisenberg chains with arbitrary spin size. At zero temperature we ob…