854 citations · 4.3k across the 56 of their papers we have counts for
57 papers
Measurments-induced quantum phase transitions
Dragi Karevski, Michele Coppola, Emanuele Tirrito +1
Dynamical phase transitions induced by local projective measurements have attracted a lot of attention in the past few years. It has been in particular argued that measurements may…
Measurement-induced transitions beyond Gaussianity: a single particle description
Luca Lumia, Emanuele Tirrito, Rosario Fazio +1
Repeated measurements can induce entanglement phase transitions in the dynamics of quantum systems. Interacting models, both chaotic and integrable, generically show a stable volum…
Dynamics of charge fluctuations from asymmetric initial states
Bruno Bertini, Katja Klobas, Mario Collura +2
Conserved-charge densities are very special observables in quantum many-body systems as, by construction, they encode information about the dynamics. Therefore, their evolution is…
Continuously Monitored Quantum Systems beyond Lindblad Dynamics
Guglielmo Lami, Alessandro Santini, Mario Collura
The dynamics of a quantum system, undergoing unitary evolution and continuous monitoring, can be described in term of quantum trajectories. Although the averaged state fully charac…
Quantum Magic via Perfect Pauli Sampling of Matrix Product States
Guglielmo Lami, Mario Collura
We introduce a novel breakthrough approach to evaluate the nonstabilizerness of an -qubits Matrix Product State (MPS) with bond dimension . In particular, we consider the rec…
Quantifying non-stabilizerness through entanglement spectrum flatness
Emanuele Tirrito, Poetri Sonya Tarabunga, Gugliemo Lami +6
Non-stabilizerness - also colloquially referred to as magic - is the a resource for advantage in quantum computing and lies in the access to non-Clifford operations. Developing a c…
Work statistics, quantum signatures and enhanced work extraction in quadratic fermionic models
Alessandro Santini, Andrea Solfanelli, Stefano Gherardini +1
In quadratic fermionic models we determine a quantum correction to the work statistics after a sudden and a time-dependent driving. Such a correction lies in the non-commutativity…
Full counting statistics as probe of measurement-induced transitions in the quantum Ising chain
Emanuele Tirrito, Alessandro Santini, Rosario Fazio +1
Non-equilibrium dynamics of many-body quantum systems under the effect of measurement protocols is attracting an increasing amount of attention. It has been recently revealed that…
Nonequilibrium Full Counting Statistics and Symmetry-Resolved Entanglement from Space-Time Duality
Bruno Bertini, Pasquale Calabrese, Mario Collura +2
Due to its probabilistic nature, a measurement process in quantum mechanics produces a distribution of possible outcomes. This distribution - or its Fourier transform known as full…
Thermalization of long range Ising model in different dynamical regimes: a full counting statistics approach
Nishan Ranabhat, Mario Collura
We study thermalization of transverse field Ising chain with power law decaying interaction following a global quantum quench of the transverse field to two different…
Quantum Annealing for Neural Network optimization problems: a new approach via Tensor Network simulations
Guglielmo Lami, Pietro Torta, Giuseppe E. Santoro +1
Quantum Annealing (QA) is one of the most promising frameworks for quantum optimization. Here, we focus on the problem of minimizing complex classical cost functions associated wit…
Spreading of a local excitation in a Quantum Hierarchical Model
Luca Capizzi, Guido Giachetti, Alessandro Santini +1
We study the dynamics of the quantum Dyson hierarchical model in its paramagnetic phase. An initial state made by a local excitation of the paramagnetic ground state is considered.…
Avoiding barren plateaus via transferability of smooth solutions in Hamiltonian Variational Ansatz
Antonio Anna Mele, Glen Bigan Mbeng, Giuseppe Ernesto Santoro +2
A large ongoing research effort focuses on Variational Quantum Algorithms (VQAs), representing leading candidates to achieve computational speed-ups on current quantum devices. The…
Clean two-dimensional Floquet time-crystal
Alessandro Santini, Giuseppe E. Santoro, Mario Collura
We consider the two-dimensional quantum Ising model, in absence of disorder, subject to periodic imperfect global spin flips. We show by a combination of exact diagonalization and…
Thermodynamic symmetry resolved entanglement entropies in integrable systems
Lorenzo Piroli, Eric Vernier, Mario Collura +1
We develop a general approach to compute the symmetry-resolved Rényi and von Neumann entanglement entropies (SREE) of thermodynamic macrostates in interacting integrable systems. O…
Matrix Product States with Backflow correlations
Guglielmo Lami, Giuseppe Carleo, Mario Collura
By taking inspiration from the backflow transformation for correlated systems, we introduce a novel tensor network ansatz which extend the well-established Matrix Product State rep…
Discrete time-crystalline response stabilized by domain-wall confinement
Mario Collura, Andrea De Luca, Davide Rossini +1
Discrete time crystals represent a paradigmatic nonequilibrium phase of periodically driven matter. Protecting its emergent spatiotemporal order necessitates a mechanism that hinde…
Dynamics of the order-parameter statistics in the long-range Ising model
Nishan Ranabhat, Mario Collura
We study the relaxation of the local ferromagnetic order in the transverse field quantum Ising chain with power-law decaying interactions . We prepare the system in the GHZ…
Growth of entanglement entropy under local projective measurements
Michele Coppola, Emanuele Tirrito, Dragi Karevski +1
Non-equilibrium dynamics of many-body quantum systems under the effect of measurement protocols is attracting an increasing amount of attention. It has been recently revealed that…
Relaxation of the order-parameter statistics and dynamical confinement
Riccardo Javier Valencia Tortora, Pasquale Calabrese, Mario Collura
We study the relaxation of the local ferromagnetic order in the quantum Ising chain in a slant field with both longitudinal and transverse components. After preparing the system in…
Full counting statistics in the gapped XXZ spin chain
Pasquale Calabrese, Mario Collura, Giuseppe Di Giulio +1
We exploit the knowledge of the entanglement spectrum in the ground state of the gapped XXZ spin chain to derive asymptotic exact results for the full counting statistics of the tr…
Domain-wall melting in the spin- XXZ spin chain: emergent Luttinger liquid with fractal quasi-particle charge
Mario Collura, Andrea De Luca, Pasquale Calabrese +1
In spin chains with local unitary evolution preserving the magnetization , the domain-wall state $\left| \dots \uparrow \uparrow \uparrow \uparrow \uparrow \downarrow \d…
Entanglement spreading and quasiparticle picture beyond the pair structure
Alvise Bastianello, Mario Collura
The quasi-particle picture is a powerful tool to understand the entanglement spreading in many-body quantum systems after a quench. As an input, the structure of the excitations' p…
Two-dimensional quantum-link lattice Quantum Electrodynamics at finite density
Timo Felser, Pietro Silvi, Mario Collura +1
We present an unconstrained tree tensor network approach to the study of lattice gauge theories in two spatial dimensions showing how to perform numerical simulations of theories i…