16 citations · 39 across the 7 of their papers we have counts for
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cond-mat.stat-mech2003★ 3 cited
Non-equilibrium properties of the S=1/2 Heisenberg model in a time-dependent magnetic field
V. Turkowski, V. R. Vieira, P. D. Sacramento
The time-dependent behavior of the Heisenberg model in contact with a phonon heat bath and in an external time-dependent magnetic field is studied by means of a path integral appro…
cond-mat.stat-mech1997★ 4 cited
Haldane gap in a S=1 exchange model with long-range interactions
P. D. Sacramento, V. R. Vieira
The ground-state properties of the S=1 Haldane-Shastry model are studied using a modified Lanczos algorithm and diagonalizing exactly small chains. We find evidence that, as for th…