4 papers
Breaking of clustering and macroscopic coherence under the lens of asymmetry measures
Florent Ferro
In one-dimensional systems, spontaneous symmetry breaking (SSB) states are fragile by nature, as the injection of a non-zero energy density above the ground state is expected to re…
Macroscopic Quantum States and Universal Correlations in a Disorder-Order Interface Propagating over a 1D Ground State
Vanja MariÄ, Florent Ferro, Maurizio Fagotti
We consider translationally invariant quantum spin- chains with local interactions and a discrete symmetry that is spontaneously broken at zero temperature. We envisio…
Disorder-Order Interface Propagating over the Ferromagnetic Ground State in the Transverse Field Ising Chain
Vanja MariÄ, Florent Ferro, Maurizio Fagotti
We consider time evolution of order parameters and entanglement asymmetries in the ferromagnetic phase of the transverse-field Ising chain. One side of the system is prepared in a…
Kicking Quantum Fisher Information out of Equilibrium
Florent Ferro, Maurizio Fagotti
Quantum Fisher Information (QFI) is a ubiquitous quantity with applications ranging from quantum metrology and resource theories to condensed matter physics. In equilibrium local q…