Zobrazeno 1 - 10
of 2 564
pro vyhledávání: '"Ruffo P"'
We study non-equilibrium properties of a chain of $N$ oscillators with both long-ranged harmonic interactions and long-range conservative noise that exchange momenta of particle pairs. We derive exact expressions for the (deterministic) energy-curren
Externí odkaz:
http://arxiv.org/abs/2409.11832
The dynamics of initial long-wavelength excitations of the Fermi-Pasta-Ulam-Tsingou chain has been the subject of intense investigations since the pioneering work of Fermi and collaborators. We have recently found a new regime where the spectrum of t
Externí odkaz:
http://arxiv.org/abs/2407.16534
We study the effect of competing interactions on ensemble inequivalence. We consider a one-dimensional Ising model with ferromagnetic mean-field interactions and short-range couplings which can be either ferromagnetic or antiferromagnetic. Despite th
Externí odkaz:
http://arxiv.org/abs/2406.03826
Publikováno v:
Phys. Rev. Lett. 133, 050403 (2024)
Ensemble inequivalence, i.e. the possibility of observing different thermodynamic properties depending on the statistical ensemble which describes the system, is one of the hallmarks of long-range physics, which has been demonstrated in numerous clas
Externí odkaz:
http://arxiv.org/abs/2403.06673
Autor:
Vilella, Salvatore, Lupi, Arthur Thomas Edward Capozzi, Fornasiero, Marco, Moncalvo, Dario, Ricci, Valeria, Ronchiadin, Silvia, Ruffo, Giancarlo
This paper explores anomaly detection through temporal network analysis. Unlike many conventional methods, relying on rule-based algorithms or general machine learning approaches, our methodology leverages the evolving structure and relationships wit
Externí odkaz:
http://arxiv.org/abs/2311.14778
Publikováno v:
Giornale di Fisica, VOL. LXIV, N. 3 p.275 (2023)
The year 1953 is pivotal for computational physics: the first application of the Monte-Carlo method is published and calculations of the so-called Fermi-Pasta-Ulam-Tsingou experiment are started. It is the beginning of the massive use in the physical
Externí odkaz:
http://arxiv.org/abs/2311.09769
Publikováno v:
Chaos 34, 023128 (2024)
The famous Bernoulli shift (or dyadic transformation) is perhaps the simplest deterministic dynamical system exhibiting chaotic dynamics. It is a piecewise linear time-discrete map on the unit interval with a uniform slope larger than one, hence expa
Externí odkaz:
http://arxiv.org/abs/2308.09269
Publikováno v:
Phys. Rev. Research 6, 013311 (2024)
The simulation of complex quantum many-body systems is a promising short-term goal of noisy intermediate-scale quantum (NISQ) devices. However, the limited connectivity of native qubits hinders the implementation of quantum algorithms that require lo
Externí odkaz:
http://arxiv.org/abs/2305.14426
Publikováno v:
J. Stat. Mech. (2023) 083207
We study the lifetime of locally stable states in the Thirring model, which describes a system of particles whose interactions are long-range. The model exhibits first-order phase transitions in the canonical ensemble and, therefore, a free energy ba
Externí odkaz:
http://arxiv.org/abs/2305.03009
Publikováno v:
Phys. Rev. E 108, 024115, Vol. 108, Iss. 2 (2023)
We perform a numerical study of transport properties of a one-dimensional chain with couplings decaying as an inverse power $r^{-(1+\sigma)}$ of the intersite distance $r$ and open boundary conditions, interacting with two heat reservoirs. Despite it
Externí odkaz:
http://arxiv.org/abs/2305.00536