300 citations · 1.6k across the 72 of their papers we have counts for
72 papers
Universality of superdiffusion in simple random graphs
Mrinal Sarkar, Nicolò Defenu, Tilman Enss
Random walks with long-range jumps can drive superdiffusive transport, replacing ordinary diffusion with an effective long-range kinetic operator. Such superdiffusive kinetics is a…
Emergent quantum chaos from correlations on a random graph
Mrinal Sarkar, Valerio Pagni, Tilman Enss +1
This work demonstrates that sparse long-range random bonds on a one-dimensional lattice alone can generate quantum-chaotic spectral correlations and also drive a localization trans…
False vacuum decay in long-range interacting quantum systems
Valerio Pagni, Laura Batini, Nicolò Defenu
We formulate false-vacuum decay in a mixed-field Ising chain with interactions as a spatially nonlocal Euclidean theory featuring a fractional spatial kinetic term $\…
Photon correlation microscopy of quantum matter
Elie Vandoolaeghe, Iñigo Lasheras, Chirag Vaswani +8
Light and matter share fundamental statistical properties, yet the experimental probes of quantum optics and many-body physics have largely evolved along separate trajectories. Whi…
Robust spin-squeezing with random interaction graphs: the lesson from universality
Andrea Solfanelli, Augusto Smerzi, Peter Zoller +1
We establish the conditions under which scalable spin squeezing can be achieved in interacting spin ensembles embedded in arbitrary, inhomogeneous graph geometries. We identify two…
Crossover and Critical Behavior in the Layered XY Model
Roman Kracht, Andrea Trombettoni, Ilaria Maccari +1
Motivated by the interplay between 2D and 3D scaling signatures observed in unconventional layered superconductors, we present a systematic Monte Carlo study of the three-dimension…
Critical aging and relaxation dynamics in long-range systems
Valerio Pagni, Friederike Ihssen, Nicolò Defenu
We study the dynamical scaling of long-range models after a sudden quench to the critical temperature, using the functional renormalization group approach. We chara…
Neighbourhood topology unveils pathological hubs in the brain networks of epilepsy-surgery patients
Leonardo Di Gaetano, Fernando A. N. Santos, Federico Battiston +6
Pathological hubs in the brain networks of epilepsy patients are hypothesized to drive seizure generation and propagation. In epilepsy-surgery patients, these hubs have traditional…
Observation of a supersolid stripe state in two-dimensional dipolar gases
Yifei He, Haoting Zhen, Mithilesh K. Parit +5
Fluctuations typically destroy long-range order in two-dimensional (2D) systems, posing a fundamental challenge to the existence of exotic states like supersolids, which paradoxica…
Large- with long-range interactions: integrability and resonance dynamics
Guido Giachetti, Nicolo Defenu
We study the large- dynamics of the long-range quantum model, focusing on the strong long-range regime . The dynamics of the model exhibits non-trivial features on m…
Breakdown of adiabaticity in topological quantum liquids
Carola Ciaramelletti, Daniel Arrufat-Vicente, Simone Paganelli +1
We study the temporal behavior of topological quantum fluids with strong long-range couplings under slow external perturbations, whose rate approaches the quasi-static limit $δ…
Universality and weak-ergodicity breaking in quantum quenches
Guido Giachetti, Andrea Solfanelli, Nicolò Defenu
Understanding equilibration and universality after sudden quantum quenches remains a central challenge in isolated many-body systems. Persistent oscillations and anomalous scaling…
Breaking of scale invariance in a strongly dipolar 2D Bose gas
Haoting Zhen, Yifei He, Sampriti Saha +4
Two-dimensional (2D) dipolar atomic gases present unique opportunities for exploring novel quantum phases due to their anisotropic and long-range interactions. However, the behavio…
One-dimensional long-range Ising model: two (almost) equivalent approximations
Valerio Pagni, Guido Giachetti, Andrea Trombettoni +1
We investigate the critical behavior of the one-dimensional Ising model with long-range interactions using the functional renormalization group in the local potential approximation…
Long range to short range crossover in one dimension
Mrinal Sarkar, Nicolò Defenu, Tilman Enss
This work investigates the critical behavior of one-dimensional systems with long-range (LR) interactions, focusing on the crossover to short-range (SR) universality. Through large…
Quantum quenches with long range interactions
Marianna Sorba, Nicolò Defenu, Gesualdo Delfino
We extend the theory of quantum quenches to the case of -dimensional homogeneous systems with long range interactions. This is achieved treating the long range interactions as s…
Ensemble Inequivalence in Long-Range Quantum Spin Systems
Daniel Arrufat-Vicente, David Mukamel, Stefano Ruffo +1
Ensemble inequivalence occurs when a systems thermodynamic properties vary depending on the statistical ensemble used to describe it. This phenomenon is known to happen in systems…
Nonperturbative treatment of a quenched Langevin field theory
Friederike Ihssen, Valerio Pagni, Jamir Marino +2
We present a novel approach within the functional renormalization group framework for computing critical exponents that characterize the time evolution of out-of-equilibrium many-b…
The long-range origin of the black hole entropy
Andrea Solfanelli, Francesco Petocchi, Nicolò Defenu
The Sachdev-Ye-Kitaev (SYK) model, has emerged as a powerful tool for exploring the quantum nature of black holes, particularly their residual entropy at zero temperature. In this…
Echoes and defects in the Calogero model
Benjamin Liégeois, Ramasubramanian Chitra, Nicolò Defenu
In this work, we extend the study of the interplay between scaling symmetries and statistics to one-dimensional fluids by studying the Calogero model in a harmonic trap modulated t…
Freezing and Shielding under Global Quenches for Long-Range Interacting Many-Body Systems
Daniel Arrufat-Vicente, Nicolò Defenu
We investigate the time evolution of a Fermi-Hubbard model with long range hopping following a sudden quench of the local interactions among different spin species. The quasi-parti…
Universal work statistics in long-range interacting quantum systems
Andrea Solfanelli, Nicolò Defenu
We determine the conditions under which the presence of long-range interactions reduce the energy losses due to defect generation during non-adiabatic evolution, crucial for enhanc…
Universality in long-range interacting systems: the effective dimension approach
Andrea Solfanelli, Nicolò Defenu
Dimensional correspondences have a long history in critical phenomena. Here, we review the effective dimension approach, which relates the scaling exponents of a critical system in…
Observables in non-Hermitian systems: A methodological comparison
Karin Sim, Nicolò Defenu, Paolo Molignini +1
Despite acute interest in the dynamics of non-Hermitian systems, there is a lack of consensus in the mathematical formulation of non-Hermitian quantum mechanics in the community. D…