1.6k citations · 10.4k across the 262 of their papers we have counts for
6 papers · 2 filters
Exact relations between particle fluctuations and entanglement in Fermi gases
Pasquale Calabrese, Mihail Mintchev, Ettore Vicari
We derive exact relations between the Renyi entanglement entropies and the particle number fluctuations of spatial connected regions in systems of N noninteracting fermions in arbi…
Entanglement Entropy of Quantum Wire Junctions
Pasquale Calabrese, Mihail Mintchev, Ettore Vicari
We consider a fermion gas on a star graph modeling a quantum wire junction and derive the entanglement entropy of one edge with respect to the rest of the junction. The gas is free…
Anisotropic perturbations in three-dimensional O(N)-symmetric vector models
Martin Hasenbusch, Ettore Vicari
We investigate the effects of anisotropic perturbations in three-dimensional O(N)-symmetric vector models. In order to assess their relevance for the critical behavior, we determin…
Critical dynamics in trapped particle systems
Gianluca Costagliola, Ettore Vicari
We discuss the effects of a trapping space-dependent potential on the critical dynamics of lattice gas models. Scaling arguments provide a dynamic trap-size scaling framework to de…
The entanglement entropy of 1D systems in continuous and homogenous space
Pasquale Calabrese, Mihail Mintchev, Ettore Vicari
We introduce a systematic framework to calculate the bipartite entanglement entropy of a compact spatial subsystem in a one-dimensional quantum gas which can be mapped into a nonin…
The entanglement entropy of one-dimensional gases
Pasquale Calabrese, Mihail Mintchev, Ettore Vicari
We introduce a systematic framework to calculate the bipartite entanglement entropy of a spatial subsystem in a one-dimensional quantum gas which can be mapped into a noninteractin…