37 citations · 174 across the 24 of their papers we have counts for
24 papers
Observation of far-from-equilibrium scaling in the transient dynamics of 2D quantum magnets
Fabio Bensch, Umberto Borla, Federico Balducci +7
The transient regime of far-from-equilibrium quantum many-body dynamics lacks the established organizing principles that universality and scaling provide in equilibrium. It is leas…
(Non-)Traversable Quantum Phase Transitions
Federico Balducci, Paul M. Schindler, Andrea Solfanelli +1
Quantum phase transitions manifest as an abrupt change in the ground state of a many-body system; yet it is an open question whether this sudden change necessarily precludes a cont…
The deep Hilbert space of all-to-all interacting SU(3) atoms: from quantum to classical
Federico Balducci, Aleksandra A. Ziolkowska
We study the emergence of chaos in multilevel atoms with all-to-all interactions, inspired by cavity QED. Focusing on a 3-level Tavis-Cummings model in a far detuned limit, we deta…
Domain coarsening in fractonic systems: a cascade of critical exponents
Jacopo Gliozzi, Federico Balducci, Giuseppe De Tomasi
We study the dynamics of domain growth when multipole moments of the order parameter are conserved. Following a quench into the ordered phase of the Ising model, the typical size o…
Symmetry re-breaking in an effective theory of quantum coarsening
Federico Balducci, Anushya Chandran, Roderich Moessner
We present a simple theory accounting for two central observations in a recent experiment on quantum coarsening and collective dynamics on a programmable quantum simulator [T. Mano…
Finite steady-state current defies non-Hermitian many-body localization
Pietro Brighi, Marko Ljubotina, Federico Roccati +1
Non-Hermitian many-body localization (NH MBL) has emerged as a possible scenario for stable localization in open systems, as suggested by spectral indicators identifying a putative…
Non-Hermitian Multipole Skin Effects Challenge Localization
Jacopo Gliozzi, Federico Balducci, Taylor L. Hughes +1
We study the effect of quenched disorder on the non-Hermitian skin effect in systems that conserve a U(1) charge and its associated multipole moments. In particular, we generalize…
Driving a Quantum Phase Transition at Arbitrary Rate: Exact solution of the Transverse-Field Ising model
András Grabarits, Federico Balducci, Adolfo del Campo
We study the crossing of the quantum phase transition in the transverse-field Ising model after modulating the magnetic field at an arbitrary rate, exploring the critical dynamics…
Scaling analysis and renormalization group on the mobility edge in the quantum random energy model
Federico Balducci, Giacomo Bracci-Testasecca, Jacopo Niedda +2
Building on recent progress in the study of Anderson and many-body localization via the renormalization group (RG), we examine the scaling theory of localization in the quantum Ran…
Renormalization-Group Analysis of the Many-Body Localization Transition in the Random-Field XXZ Chain
Jacopo Niedda, Giacomo Bracci-Testasecca, Giuseppe Magnifico +3
We analyze the spectral properties of the Heisenberg spin-1/2 chain with random fields in light of recent works of the renormalization-group flow of the Anderson model in infinite…
Fighting Exponentially Small Gaps by Counterdiabatic Driving
András Grabarits, Federico Balducci, Adolfo del Campo
We investigate the efficiency of approximate counterdiabatic driving (CD) in accelerating adiabatic passage through exponentially small gaps. First, we analyze a minimal spin-glass…
Two transitions in complex eigenvalue statistics: Hermiticity and integrability breaking
G. Akemann, F. Balducci, A. Chenu +3
Open quantum systems have complex energy eigenvalues which are expected to follow non-Hermitian random matrix statistics when chaotic, or 2-dimensional (2d) Poisson statistics when…
Non-Adiabatic Quantum Optimization for Crossing Quantum Phase Transitions
András Grabarits, Federico Balducci, Barry C. Sanders +1
We consider the optimal driving of the ground state of a many-body quantum system across a quantum phase transition in finite time. In this context, excitations caused by the break…
Diagnosing non-Hermitian Many-Body Localization and Quantum Chaos via Singular Value Decomposition
Federico Roccati, Federico Balducci, Ruth Shir +1
Strong local disorder in interacting quantum spin chains can turn delocalized eigenmodes into localized eigenstates, giving rise to many-body localized (MBL) phases. This is accomp…
Large Deviations Beyond the Kibble-Zurek Mechanism
Federico Balducci, Mathieu Beau, Jing Yang +2
The Kibble-Zurek mechanism (KZM) predicts that the average number of topological defects generated upon crossing a continuous or quantum phase transition obeys a universal scaling…
Subdiffusive spin transport in disordered classical Heisenberg chains
Adam J. McRoberts, Federico Balducci, Roderich Moessner +1
We study the transport and equilibration properties of a classical Heisenberg chain, whose couplings are random variables drawn from a one-parameter family of power-law distributio…
Interface dynamics in the two-dimensional quantum Ising model
Federico Balducci, Andrea Gambassi, Alessio Lerose +2
In a recent paper [Phys. Rev. Lett. 129, 120601] we have shown that the dynamics of interfaces, in the symmetry-broken phase of the two-dimensional ferromagnetic quantum Ising mode…
Slow melting of a disordered quantum crystal
Federico Balducci, Antonello Scardicchio, Carlo Vanoni
The melting of the corner of a crystal is a classical, real-world, non-equilibrium statistical mechanics problem which has shown several connections with other branches of physics…
Localization and melting of interfaces in the two-dimensional quantum Ising model
Federico Balducci, Andrea Gambassi, Alessio Lerose +2
We study the non-equilibrium evolution of coexisting ferromagnetic domains in the two-dimensional quantum Ising model -- a setup relevant in several contexts, from quantum nucleati…
Optimal control of a quantum sensor: A fast algorithm based on an analytic solution
S. Hernández-Gómez, F. Balducci, G. Fasiolo +3
Quantum sensors can show unprecedented sensitivities, provided they are controlled in a very specific, optimal way. Here, we consider a spin sensor of time-varying fields in the pr…
Spatio-temporal heterogeneity of entanglement in many-body localized systems
Claudia Artiaco, Federico Balducci, Markus Heyl +2
We propose a spatio-temporal characterization of the entanglement dynamics in many-body localized (MBL) systems, which exhibits a striking resemblance with dynamical heterogeneity…
Localization in the Discrete Non-Linear Schrödinger Equation and geometric properties of the microcanonical surface
Claudio Arezzo, Federico Balducci, Riccardo Piergallini +2
It is well known that, if the initial conditions have sufficiently high energy density, the dynamics of the classical Discrete Non-Linear Schrödinger Equation (DNLSE) on a lattice…
Signatures of Many-Body Localization in the Dynamics of Two-Level Systems in Glasses
Claudia Artiaco, Federico Balducci, Antonello Scardicchio
We investigate the quantum dynamics of Two-Level Systems (TLS) in glasses at low temperatures (1 K and below). We study an ensemble of TLSs coupled to phonons. By integrating out t…
Quantum Jamming: Critical Properties of a Quantum Mechanical Perceptron
Claudia Artiaco, Federico Balducci, Giorgio Parisi +1
In this Letter, we analyze the quantum dynamics of the perceptron model: a particle is constrained on a -dimensional sphere, with , and subjected to a set of random…