85 citations · 1k across the 42 of their papers we have counts for
7 papers · 1 filter
Thermalization without chaos in harmonic systems
Niccolò Cocciaglia, Angelo Vulpiani, Giacomo Gradenigo
Recent numerical results showed that thermalization of Fourier modes is achieved in short time-scales in the Toda model, despite its integrability and the absence of chaos. Here we…
First-order condensation transition in the position distribution of a run-and-tumble particle in one dimension
Francesco Mori, Giacomo Gradenigo, Satya N. Majumdar
We consider a single run-and-tumble particle (RTP) moving in one dimension. We assume that the velocity of the particle is drawn independently at each tumbling from a zero-mean Gau…
Statistical Features of High-Dimensional Hamiltonian Systems
Marco Baldovin, Giacomo Gradenigo, Angelo Vulpiani
In this short review we propose a critical assessment of the role of chaos for the thermalization of Hamiltonian systems with high dimensionality. We discuss this problem for both…
Condensation transition and ensemble inequivalence in the Discrete Nonlinear Schrödinger Equation
Giacomo Gradenigo, Stefano Iubini, Roberto Livi +1
The thermodynamics of the discrete nonlinear Schrödinger equation in the vicinity of infinite temperature is explicitly solved in the microcanonical ensemble by means of large-devi…
How non-equilibrium correlations in active matter reveal the topological crossover in glasses
Giacomo Gradenigo, Matteo Paoluzzi
As shown by early studies on mean-field models of the glass transition, the geometrical features of the energy landscape provide fundamental information on the dynamical transition…
Symplectic quantization I: dynamics of quantum fluctuations in a relativistic field theory
Giacomo Gradenigo, Roberto Livi
We propose here a new symplectic quantization scheme, where quantum fluctuations of a scalar field theory stem from two main assumptions: relativistic invariance and equiprobabilit…
Symplectic quantization II: dynamics of space-time quantum fluctuations and the cosmological constant
Giacomo Gradenigo
The symplectic quantization scheme proposed for matter scalar fields in the companion paper "Symplectic quantization I" is generalized here to the case of space-time quantum fluctu…