43 citations · 48 across the 2 of their papers we have counts for
3 papers
cond-mat.stat-mech2005★ 5 cited
Scaling of excitations in dimerized and frustrated spin-1/2 chains
D. Controzzi, C. Degli Esposti Boschi, F. Ortolani +1
We study the finite-size behavior of the low-lying excitations of spin-1/2 Heisenberg chains with dimerization and next-to-nearest neighbors interaction, J_2. The numerical analysi…
cond-mat.stat-mech2003★ 43 cited
Investigation of Quantum Phase Transitions using Multi-target DMRG Methods
C. Degli Esposti Boschi, F. Ortolani
In this paper we examine how the predictions of conformal invariance can be widely exploited to overcome the difficulties of the density-matrix renormalization group near quantum c…
cond-mat1996
Numerical results for generalized RVB wavefunctions
G. Fano, F. Ortolani, L. Ziosi
Numerical results are presented for a generalized resonance valence bond state which includes both ionic and covalent contributions in each bond ; non nearest-neighbor bonds are al…