204 citations · 1.6k across the 25 of their papers we have counts for
25 papers
Hierarchical hydrodynamics in long-range multipole-conserving systems
Jacopo Gliozzi, Julian May-Mann, Taylor L. Hughes +1
This work investigates the out-of-equilibrium dynamics of dipole and higher-moment conserving systems with long-range interactions, drawing inspiration from trapped ion experiments…
Non-Hermiticity induces localization: good and bad resonances in power-law random banded matrices
Giuseppe De Tomasi, Ivan M. Khaymovich
The power-law random banded matrix (PLRBM) is a paradigmatic ensemble to study the Anderson localization transition (AT). In -dimension the PLRBM are random matrices with algebr…
Anderson localization of emergent quasiparticles: Spinon and vison interplay at finite temperature in a gauge theory in three dimensions
Minho Kim, Giuseppe De Tomasi, Claudio Castelnovo
Fractional statistics of quasiparticle excitations often plays an important role in the detection and characterization of topological systems. In this paper, we investigate the cas…
Non-Hermitian Rosenzweig-Porter random-matrix ensemble: Obstruction to the fractal phase
Giuseppe De Tomasi, Ivan M. Khaymovich
We study the stability of non-ergodic but extended (NEE) phases in non-Hermitian systems. For this purpose, we generalize a so-called Rosenzweig-Porter random-matrix ensemble (RP),…
Effects of critical correlations on quantum percolation in two dimensions
Giuseppe De Tomasi, Oliver Hart, Cecilie Glittum +1
We analyze the out-of-equilibrium dynamics of a quantum particle coupled to local magnetic degrees of freedom that undergo a classical phase transition. Specifically, we consider a…
Sub-diffusive Thouless time scaling in the Anderson model on random regular graphs
Luis Colmenarez, David J. Luitz, Ivan M. Khaymovich +1
The scaling of the Thouless time with system size is of fundamental importance to characterize dynamical properties in quantum systems. In this work, we study the scaling of the Th…
Distinguishing an Anderson Insulator from a Many-Body Localized phase through space-time snapshots with Neural Networks
Florian Kotthoff, Frank Pollmann, Giuseppe De Tomasi
Distinguishing the dynamics of an Anderson insulator from a Many-Body Localized (MBL) phase is an experimentally challenging task. In this work, we propose a method based on machin…
Fate of Algebraic Many-Body Localization under driving
Heiko Burau, Markus Heyl, Giuseppe De Tomasi
In this work we investigate the stability of an algebraically localized phase subject to periodic driving. First, we focus on a non-interacting model exhibiting algebraically local…
Rare thermal bubbles at the many-body localization transition from the Fock space point of view
Giuseppe De Tomasi, Ivan M. Khaymovich, Frank Pollmann +1
In this work we study the many-body localization (MBL) transition and relate it to the eigenstate structure in the Fock space. Besides the standard entanglement and multifractal pr…
To heat or not to heat: time crystallinity and finite-size effects in clean Floquet systems
Andrea Pizzi, Daniel Malz, Giuseppe De Tomasi +2
A cornerstone assumption that most literature on discrete time crystals has relied on is that homogeneous Floquet systems generally heat to a featureless infinite temperature state…
Anomalous Diffusion in Dipole- and Higher-Moment Conserving Systems
Johannes Feldmeier, Pablo Sala, Giuseppe de Tomasi +2
The presence of global conserved quantities in interacting systems generically leads to diffusive transport at late times. Here, we show that systems conserving the dipole moment o…
Anomalous diffusion in particle-hole symmetric many-body localized systems
Giuseppe De Tomasi, Daniele Trapin, Markus Heyl +1
In this work we probe the dynamics of the particle-hole symmetric many-body localized (MBL) phase. We provide numerical evidence that it can be characterized by an algebraic propag…
Multifractality meets entanglement: relation for non-ergodic extended states
Giuseppe De Tomasi, Ivan M. Khaymovich
In this work we establish a relation between entanglement entropy and fractal dimension of generic many-body wave functions, by generalizing the result of Don N. Page [Phys. Re…
Distinguishing localization from chaos: challenges in finite-size systems
D. A. Abanin, J. H. Bardarson, G. De Tomasi +7
We re-examine attempts to study the many-body localization transition using measures that are physically natural on the ergodic/quantum chaotic regime of the phase diagram. Using s…
Dynamics of strongly interacting systems: From Fock-space fragmentation to Many-Body Localization
Giuseppe De Tomasi, Daniel Hetterich, Pablo Sala +1
We study the disordered spinless fermionic chain in the strong coupling regime, . Strong interactions highly hinder the dynamics of the model, fragmenting…
Sub-diffusion in the Anderson model on random regular graph
Giuseppe De Tomasi, Soumya Bera, Antonello Scardicchio +1
We study the finite-time dynamics of an initially localized wave-packet in the Anderson model on the random regular graph (RRG). Considering the full probability distribution $Π(x,…
Describing many-body localized systems in thermal environments
Ling-Na Wu, Alexander Schnell, Giuseppe De Tomasi +2
In this work we formulate an efficient method for the description of many-body localized systems in weak contact with thermal environments at temperature . For this purpose we e…
Algebraic Many-Body Localization and its implications on information propagation
Giuseppe De Tomasi
We probe the existence of a many-body localized phase (MBL-phase) in a spinless fermionic Hubbard chain with algebraically localized single-particle states, by investigating both s…
Solving efficiently the dynamics of many-body localized systems at strong disorder
Giuseppe De Tomasi, Frank Pollmann, Markus Heyl
We introduce a method to efficiently study the dynamical properties of many-body localized systems in the regime of strong disorder and weak interactions. Our method reproduces qua…
Return probability for the Anderson model on the random regular graph
Soumya Bera, Giuseppe De Tomasi, Ivan M. Khaymovich +1
We study the return probability for the Anderson model on the random regular graph and give evidence of the existence of two distinct phases: a fully ergodic and nonergodic one. In…
Survival probability in Generalized Rosenzweig-Porter random matrix ensemble
G. De Tomasi, M. Amini, S. Bera +2
We study analytically and numerically the dynamics of the generalized Rosenzweig-Porter model, which is known to possess three distinct phases: ergodic, multifractal and localized…
Characterizing time-irreversibility in disordered fermionic systems by the effect of local perturbations
Shreya Vardhan, Giuseppe De Tomasi, Markus Heyl +2
We study the effects of local perturbations on the dynamics of disordered fermionic systems in order to characterize time-irreversibility. We focus on three different systems, the…
Density propagator for many-body localization: finite size effects, transient subdiffusion, and exponential decay
Soumya Bera, Giuseppe De Tomasi, Felix Weiner +1
We investigate charge relaxation in quantum-wires of spin-less disordered fermions (-model). Our observable is the time-dependent density propagator, ,…
Quantum Mutual Information as a Probe for Many-Body Localization
Giuseppe De Tomasi, Soumya Bera, Jens H. Bardarson +1
We demonstrate that the quantum mutual information (QMI) is a useful probe to study many-body localization (MBL). First, we focus on the detection of a metal--insulator transition…