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quant-ph2018
Multipartite entanglement in quantum phase transitions
Marco Gabbrielli
This dissertation collects results about witnessing multipartite entanglement in critical spin systems and free-fermion models both at zero and finite temperature.
quant-ph2018★ 24 cited
Multipartite-Entanglement Tomography of a Quantum Simulator
Marco Gabbrielli, Luca Lepori, Luca Pezzè
Multipartite entanglement tomography, namely the quantum Fisher information (QFI) calculated with respect to different collective operators, allows to fully characterize the phase…
cond-mat.str-el2018★ 67 cited
Multipartite Entanglement at Finite Temperature
Marco Gabbrielli, Augusto Smerzi, Luca Pezzè
The interplay of quantum and thermal fluctuations in the vicinity of a quantum critical point characterizes the physics of strongly correlated systems. Here we investigate this int…