854 citations · 6.2k across the 46 of their papers we have counts for
3 papers · 1 filter
Universal parity effects in the entanglement entropy of XX chains with open boundary conditions
Maurizio Fagotti, Pasquale Calabrese
We consider the Renyi entanglement entropies in the one-dimensional XX spin-chains with open boundary conditions in the presence of a magnetic field. In the case of a semi-infinite…
Entanglement spectrum of random-singlet quantum critical points
Maurizio Fagotti, Pasquale Calabrese, Joel E. Moore
The entanglement spectrum, i.e., the full distribution of Schmidt eigenvalues of the reduced density matrix, contains more information than the conventional entanglement entropy an…
Entanglement entropy of two disjoint blocks in XY chains
Maurizio Fagotti, Pasquale Calabrese
We study the Renyi entanglement entropies of two disjoint intervals in XY chains. We exploit the exact solution of the model in terms of free Majorana fermions and we show how to c…