121 citations · 334 across the 6 of their papers we have counts for
6 papers
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.
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…
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…
Interferometric sensitivity and entanglement by scanning through quantum phase transitions in spinor Bose-Einstein condensates
P. Feldmann, M. Gessner, M. Gabbrielli +4
Recent experiments have demonstrated the generation of entanglement by quasi-adiabatically driving through quantum phase transitions of a ferromagnetic spin-1 Bose-Einstein condens…
Multipartite entanglement in topological quantum phases
Luca Pezzè, Marco Gabbrielli, Luca Lepori +1
We witness multipartite entanglement in the Kitaev chain -- a benchmark model of one dimensional topological insulator -- also with variable-range pairing, using the quantum Fisher…
Spin-mixing Interferometry with Bose-Einstein Condensates
Marco Gabbrielli, Luca Pezze', Augusto Smerzi
Unstable spinor Bose-Einstein condensates are ideal candidates to create nonlinear three-mode interferometers. Our analysis goes beyond the standard SU(1,1) parametric approach and…