493 citations · 1.6k across the 35 of their papers we have counts for
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Momentum-space analysis of multipartite entanglement at quantum phase transitions
Alberto Anfossi, Paolo Giorda, Arianna Montorsi
We investigate entanglement properties at quantum phase transitions of an integrable extended Hubbard model in the momentum space representation. Two elementary subsystems are reco…
Structure of quantum correlations in momentum space and off diagonal long range order in eta pairing and BCS states
Paolo Giorda, Alberto Anfossi
The quantum states built with the eta paring mechanism i.e., eta pairing states, were first introduced in the context of high temperature superconductivity where they were recogniz…
Optimal estimation of entanglement
Marco G. Genoni, Paolo Giorda, Matteo G. A. Paris
Entanglement does not correspond to any observable and its evaluation always corresponds to an estimation procedure where the amount of entanglement is inferred from the measuremen…