43 citations · 116 across the 6 of their papers we have counts for
3 papers · 1 filter
Renyi entanglement entropies of descendant states in critical systems with boundaries: conformal field theory and spin chains
Luca Taddia, Fabio Ortolani, Tamás Pálmai
We discuss the Renyi entanglement entropies of descendant states in critical one-dimensional systems with boundaries, that map to boundary conformal field theories in the scaling l…
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…
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…