613 citations · 3.1k across the 60 of their papers we have counts for
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Dynamical Crossover of the Quantum Fisher Information in the Spin-Boson Model
D. Parlato, G. Di Bello, F. Pavan +2
We investigate the dynamical quantum Fisher information of a two-level system coupled to a bosonic environment, focusing on the estimation of the qubit gap. We combine analytical c…
Discrete time crystals in disordered anisotropic Heisenberg chains
Francesco Formicola, Grazia Di Bello, Antonio De Candia +2
A discrete time crystal is an out-of-equilibrium phase of matter characterized by the spontaneous breaking of discrete time-translation symmetry. Using extensive numerical simulati…
Bloch sphere picture and restoration of the quantum Mpemba effect beyond the weak coupling regime in the spin boson model
P. Chirico, G. Di Bello, G. De Filippis +1
Understanding relaxation dynamics in open quantum systems is a central problem in nonequilibrium quantum physics. Here we investigate the quantum Mpemba effect in the spin boson mo…
Environment induced dynamical quantum phase transitions in two-qubit Rabi model
G. Di Bello, A. Ponticelli, F. Pavan +4
The physics of quantum states beyond thermodynamic equilibrium represents a fascinating and cutting-edge research. Using numerical state-of-the-art approaches, we observe dynamical…
Optimal encoding of two dissipative interacting qubits
G. Di Bello, G. De Filippis, A. Hamma +1
We investigate a system of two coupled qubits interacting with an Ohmic bath as a physical model for the implementation of one logical qubit. In this model, the interaction with th…
Qubit-oscillator relationships in the open quantum Rabi model: the role of dissipation
G. Di Bello, L. M. Cangemi, V. Cataudella +3
Using a dissipative quantum Rabi model, we study the dynamics of a slow qubit coupled to a fast quantum harmonic oscillator interacting with a bosonic bath from weak to strong and…
First-order transitions in spin chains coupled to quantum baths
C. A. Perroni, A. De Candia, V. Cataudella +2
We show that tailoring the dissipative environment allows to change the features of continuous quantum phase transitions and, even, induce first order transitions in ferromagnetic…
Signatures of Dissipation Driven Quantum Phase Transition in Rabi Model
G. De Filippis, A. de Candia, G. Di Bello +6
By using worldline Monte Carlo technique, matrix product state and a variational approach à la Feynman, we investigate the equilibrium properties and relaxation features of the dis…
Dynamical heat engines with non--Markovian reservoirs
Fabio Cavaliere, Matteo Carrega, Giulio De Filippis +3
We discuss whether, and under which conditions, it is possible to realize a heat engine simply by dynamically modulating the couplings between the quantum working medium and therma…
A dissipative environment may improve the quantum annealing performances of the ferromagnetic p-spin model
G. Passarelli, G. De Filippis, V. Cataudella +1
We investigate the quantum annealing of the ferromagnetic -spin model in a dissipative environment ( and ). This model, in the large limit, codifies th…
Dynamical moments reveal a topological quantum transition in a photonic quantum walk
Filippo Cardano, Maria Maffei, Francesco Massa +6
Many phenomena in solid-state physics can be understood in terms of their topological properties. Recently, controlled protocols of quantum walks are proving to be effective simula…