201 citations · 607 across the 16 of their papers we have counts for
16 papers
Quantum Fisher Information under decoherence with explicit wavefunctions
Francesco Musso, Vittorio Vitale, Sara Murciano
We present a method to estimate the quantum Fisher information (QFI) of many-body quantum states in the presence of decoherence, where its direct evaluation requires the full spect…
Network theory classification of quantum matter based on wave function snapshots
Riccardo Andreoni, Vittorio Vitale, Cristiano Muzzi +3
Quantum computers and simulators offer unparalleled capabilities of probing quantum many-body states, by obtaining snapshots of the many-body wave function via collective projectiv…
Thermalization and Criticality on an Analog-Digital Quantum Simulator
Trond I. Andersen, Nikita Astrakhantsev, Amir H. Karamlou +224
Understanding how interacting particles approach thermal equilibrium is a major challenge of quantum simulators. Unlocking the full potential of such systems toward this goal requi…
The quantum Mpemba effect in free-fermionic mixed states
Filiberto Ares, Vittorio Vitale, Sara Murciano
Recently, a novel probe to study symmetry breaking, known as entanglement asymmetry, has emerged and has been utilized to explore how symmetry is dynamically restored following qua…
Robust estimation of the Quantum Fisher Information on a quantum processor
Vittorio Vitale, Aniket Rath, Petar Jurcevic +3
We present the experimental measurement, on a quantum processor, of a series of polynomial lower bounds that converge to the quantum Fisher information (QFI), a fundamental quantit…
Data-driven discovery of statistically relevant information in quantum simulators
R. Verdel, V. Vitale, R. K. Panda +7
Quantum simulators offer powerful means to investigate strongly correlated quantum matter. However, interpreting measurement outcomes in such systems poses significant challenges.…
Topological Kolmogorov complexity and the Berezinskii-Kosterlitz-Thouless mechanism
Vittorio Vitale, Tiago Mendes-Santos, Alex Rodriguez +1
Topology plays a fundamental role in our understanding of many-body physics, from vortices and solitons in classical field theory, to phases and excitations in quantum matter. Topo…
Entanglement phase diagrams from partial transpose moments
Jose Carrasco, Matteo Votto, Vittorio Vitale +5
We present experimentally and numerically accessible quantities that can be used to differentiate among various families of random entangled states. To this end, we analyze the ent…
Entanglement barrier and its symmetry resolution: theory and experiment
Aniket Rath, Vittorio Vitale, Sara Murciano +6
The operator entanglement (OE) is a key quantifier of the complexity of a reduced density matrix. In out-of-equilibrium situations, e.g. after a quantum quench of a product state,…
The Negativity Hamiltonian: An operator characterization of mixed-state entanglement
Sara Murciano, Vittorio Vitale, Marcello Dalmonte +1
In the context of ground states of quantum many-body systems, the locality of entanglement between connected regions of space is directly tied to the locality of the corresponding…
Experimental violations of Leggett-Garg's inequalities on a quantum computer
Alessandro Santini, Vittorio Vitale
Leggett-Garg's inequalities predict sharp bounds for some classical correlation functions that address the quantum or classical nature of real-time evolutions. We experimentally ob…
Symmetry-resolved entanglement detection using partial transpose moments
Antoine Neven, Jose Carrasco, Vittorio Vitale +8
We propose an ordered set of experimentally accessible conditions for detecting entanglement in mixed states. The -th condition involves comparing moments of the partially trans…
Symmetry-resolved dynamical purification in synthetic quantum matter
Vittorio Vitale, Andreas Elben, Richard Kueng +7
When a quantum system initialized in a product state is subjected to either coherent or incoherent dynamics, the entropy of any of its connected partitions generically increases as…
Topological entanglement properties of disconnected partitions in the Su-Schrieffer-Heeger model
Tommaso Micallo, Vittorio Vitale, Marcello Dalmonte +1
We study the disconnected entanglement entropy, , of the Su-Schrieffer-Heeger model. is a combination of both connected and disconnected bipartite entanglement entropies…
Entanglement topological invariants for one-dimensional topological superconductors
Pierre Fromholz, Giuseppe Magnifico, Vittorio Vitale +2
Entanglement is known to serve as an order parameter for true topological order in two-dimensional systems. We show how entanglement of disconnected partitions defines topological…
Assessing the quantumness of the annealing dynamics via Leggett Gargs inequalities: a weak measurement approach
V. Vitale, G. De Filippis, A. De Candia +3
Adiabatic quantum computation (AQC) is a promising counterpart of universal quantum computation, based on the key concept of quantum annealing (QA). QA is claimed to be at the basi…