21 citations · 21 across the 1 of their papers we have counts for
3 papers
quant-ph2007★ 21 cited
Entanglement Entropy in Random Quantum Spin-S Chains
A. Saguia, M. S. Sarandy, B. Boechat +1
We discuss the scaling of entanglement entropy in the random singlet phase (RSP) of disordered quantum magnetic chains of general spin-S. Through an analysis of the general structu…
quant-ph2003
Entanglement and Quantum Phases in the Anisotropic Ferromagnetic Heisenberg Chain in the Presence of Domain Walls
F. C. Alcaraz, A. Saguia, M. S. Sarandy
We discuss entanglement in the spin-1/2 anisotropic ferromagnetic Heisenberg chain in the presence of a boundary magnetic field generating domain walls. By increasing the magnetic…
cond-mat.dis-nn2003
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…