163 citations · 1k across the 36 of their papers we have counts for
36 papers
Two-spin entanglement distribution near factorized states
Fabrizio Baroni, Andrea Fubini, Valerio Tognetti +1
We study the two-spin entanglement distribution along the infinite chain described by the XY model in a transverse field; closed analytical expressions are derived for the…
Quantum phase transition in spin systems studied through entanglement estimators
Andrea Fubini, Stephan Haas, Tommaso Roscilde +2
Entanglement represents a pure quantum effect involving two or more particles. Spin systems are good candidates for studying this effect and its relation with other collective phen…
Divergence of the entanglement range in low dimensional quantum systems
L. Amico, F. Baroni, A. Fubini +3
We study the pairwise entanglement close to separable ground states of a class of one dimensional quantum spin models. At T=0 we find that such ground states separate regions, in t…
Reading entanglement in terms of spin configurations in quantum magnets
Andrea Fubini, Tommaso Roscilde, Valerio Tognetti +2
We consider a quantum many-body system made of interacting spins on a lattice, and develop a formalism which allows to extract, out of conventional magnetic observabl…
Weak localization effects in granular metals
C. Biagini, T. Caneva, V. Tognetti +1
The weak localization correction to the conductivity of a granular metal is calculated using the diagrammatic technique in the reciprocal grain lattice representation. The properti…
Superconducting Fluctuation Corrections to the Thermal Current in Granular Metals
C. Biagini, R. Ferone, Rosario Fazio +2
The first-order superconducting fluctuation corrections to the thermal conductivity of a granular metal are calculated. A suppression of thermal conductivity proportional to $T_c/(…