43 citations · 74 across the 5 of their papers we have counts for
5 papers
Lyapunov modes in soft-disk systems
Christina Forster, Harald A. Posch
Lyapunov modes are periodic spatial perturbations of phase-space states of many-particle systems, which are associated with the small positive or negative Lyapunov exponents. Altho…
Lyapunov Modes in Hard-Disk Systems
Jean-Pierre Eckmann, Christina Forster, Harald A. Posch +1
We consider simulations of a 2-dimensional gas of hard disks in a rectangular container and study the Lyapunov spectrum near the vanishing Lyapunov exponents. To this spectrum are…
Hard Disks in Narrow Channels
Ch. Forster, D. Mukamel, H. A. Posch
The thermodynamic and dynamical behavior of a gas of hard disks in a narrow channel is studied theoretically and numerically. Using a virial expansion we find that the pressure and…
Perturbed phase-space dynamics of hard-disk fluids
Christina Forster, Robin Hirschl, Harald A. Posch +1
The Lyapunov spectrum describes the exponential growth, or decay, of infinitesimal phase-space perturbations. The perturbation associated with the maximum Lyapunov exponent is stro…
Lyapunov instability and collective tangent space dynamics of fluids
Harald A. Posch, Christina Forster
The phase space trajectories of many body systems charateristic of simple fluids are highly unstable. We quantify this instability by a set of Lyapunov exponents, which are the rat…