141 citations · 1.8k across the 84 of their papers we have counts for
4 papers · 1 filter
Entanglement and quantum correlations in many-body systems: a unified approach via local unitary operations
M. Cianciaruso, S. M. Giampaolo, W. Roga +3
Local unitary operations allow for a unifying approach to the quantification of quantum correlations among the constituents of a bipartite quantum system. For pure states, the dist…
Classical nature of ordered phases: origin of spontaneous symmetry breaking
M. Cianciaruso, L. Ferro, S. M. Giampaolo +2
We investigate the nature of spontaneous symmetry breaking in complex quantum systems by conjecturing that the maximally symmetry breaking quantum ground states are the most classi…
Genuine Multipartite Entanglement in the Cluster-Ising Model
S. M. Giampaolo, B. C. Hiesmayr
We evaluate and analyze the exact value of a measure for local genuine tripartite entanglement in the one-dimensional cluster-Ising model. This model is attractive since cluster st…
Discord of response
W. Roga, S. M. Giampaolo, F. Illuminati
The presence of quantum correlations in a quantum state is related to the state response to local unitary perturbations. Such response is quantified by the distance between the unp…