141 citations · 1.8k across the 84 of their papers we have counts for
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quant-ph2006★ 15 cited
Determination of ground state properties in quantum spin systems by single qubit unitary operations and entanglement excitation energies
S. M. Giampaolo, F. Illuminati, P. Verrucchi +1
We introduce a method for analyzing ground state properties of quantum many body systems, based on the characterization of separability and entanglement by single subsystem unitary…
quant-ph2006★ 2 cited
Characterizing quantum phase transitions by single qubit operations
S. M. Giampaolo, F. Illuminati, S. De Siena
We introduce observable quantities, borrowing from concepts of quantum information theory, for the characterization of quantum phase transitions in spin systems. These observables…