Contact Hamiltonian dynamics: the concept and its use

A Bravetti - Entropy, 2017 - mdpi.com
We give a short survey on the concept of contact Hamiltonian dynamics and its use in
several areas of physics, namely reversible and irreversible thermodynamics, statistical …

Thermodynamic entropy as a Noether invariant from contact geometry

A Bravetti, MÁ García-Ariza, D Tapias - Entropy, 2023 - mdpi.com
We use a formulation of Noether's theorem for contact Hamiltonian systems to derive a
relation between the thermodynamic entropy and the Noether invariant associated with time …

Bifurcation and chaos in a smooth 3D dynamical system extended from Nosé-Hoover oscillator

S Cang, L Wang, Y Zhang, Z Wang, Z Chen - Chaos, Solitons & Fractals, 2022 - Elsevier
The chaotic system with complicated dynamical behaviors has high potential in practical
applications. This paper reports a simple smooth 3D dynamical system that is derived from …

From hard spheres and cubes to nonequilibrium maps with thirty-some years of thermostatted molecular dynamics

WG Hoover, CG Hoover - The Journal of chemical physics, 2020 - pubs.aip.org
This is our current research perspective on models providing insight into statistical
mechanics. It is necessarily personal, emphasizing our own interest in simulation as it …

A chaotic circuit for producing Gaussian random numbers

JC Sprott, WJ Thio - International Journal of Bifurcation and Chaos, 2020 - World Scientific
One of the main applications for chaotic circuits is the production of aperiodic signals with
many of the characteristics of noise for secure communications and similar uses. However …

[PDF][PDF] Ergodicity of one-dimensional oscillators with a signum thermostat

JC Sprott - Computational Methods in Science and Technology, 2018 - researchgate.net
Gibbs' canonical ensemble describes the exponential equilibrium distribution f (q, p, T)∝ e−
H (q, p)/kT for an ergodic Hamiltonian system interacting with a 'heat bath'at temperature T …

[图书][B] Elegant Simulations: From Simple Oscillators to Many-Body Systems

JC Sprott, WG Hoover, CG Hoover - 2023 - World Scientific
Before embarking on more complicated and more interesting simulations of nonlinear
dynamical systems in higher dimensions, it is important to have a good understanding of low …

Global structures of clew-shaped conservative chaotic flows in a class of 3D one-thermostat systems

S Cang, G Zhao, Z Wang, Z Chen - Chaos, Solitons & Fractals, 2022 - Elsevier
Inspired by the structure of the single-clew-shaped conservative chaotic flows generated
from the Nosé–Hoover oscillator, the possible local dynamic behaviors of the thermostatted …

Stochastic sampling of the isothermal-isobaric ensemble: Phase diagram of crystalline solids from molecular dynamics simulation

S Cajahuaringa, A Antonelli - The Journal of Chemical Physics, 2018 - pubs.aip.org
A methodology to sample the isothermal-isobaric ensemble using Langevin dynamics is
proposed, which combines novel features of geometric integrators for the equations of …

Coexistence and ergodicity in a variant Nosé-Hoover oscillator and its FPGA implementation

Y Li, M Yuan, Z Chen, Z Chen - Nonlinear Dynamics, 2023 - Springer
As a classical volume-conservative system, the Nosé-Hoover oscillator can generate
conservative chaos and nested invariant tori. In this paper, a new 3D system is derived from …