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We consider the motion of many confined billiard balls in interaction and discuss their transport and chaotic properties. In spite of the absence of mass transport, due to confinement, energy transport can take place through binary…

Chaotic Dynamics · Physics 2009-08-29 Pierre Gaspard , Thomas Gilbert

We show the existence of drifting orbits for certain perturbations of non-convex Hamiltonian systems with several degrees of freedom. These orbits remain in the vicinity of resonant surfaces where the action variables can undergo changes…

Classical Analysis and ODEs · Mathematics 2015-06-19 Borislav Yordanov , Roumyana Yordanova

We show that two-dimensional billiard systems are Turing complete, in the sense that the halting of any Turing machine with a given input is equivalent to a certain bounded trajectory in this system entering a specified open set. Billiards…

Dynamical Systems · Mathematics 2026-04-24 Eva Miranda , Isaac Ramos

A systematic numerical technique for the calculation of unstable periodic orbits in the stadium billiard is presented. All the periodic orbits up to order $p=11$ are calculated and then used to calculate the average Lyapunov exponent and…

Condensed Matter · Physics 2009-10-22 Ofer Biham , Mark Kvale

What we are going to call in this paper "diffractive phenomena" in billiards is far from being deeply understood. These are sorts of singularities that, for example, some kind of corners introduce in the energy eigenfunctions. In this paper…

Chaotic Dynamics · Physics 2009-11-07 Jan Wiersig , Gabriel G. Carlo

We investigate statistical aspects of the entanglement production for open chaotic mesoscopic billiards in contact with superconducting parts, known as Andreev billiards. The complete distributions of concurrence and entanglement of…

Mesoscale and Nanoscale Physics · Physics 2017-12-06 J. G. G. S. Ramos , A. F. Macedo-Junior , A. L. R. Barbosa

In the present work we have developed a three-dimensional gravitational model of barred galaxies, in order to study orbital and escape dynamics of the stars inside their central barred region. Our gravitational model is composed of four…

Astrophysics of Galaxies · Physics 2021-09-29 Debasish Mondal , Tanuka Chattopadhyay

Using examples we test formulae previously conjectured to give the fractal information dimension of chaotic repellors and their stable and unstable manifolds in ``typical'' dynamical systems in terms of the Lyapunov exponents and the…

Chaotic Dynamics · Physics 2009-10-31 D. Sweet , E. Ott

The problem of two interacting particles moving in a d-dimensional billiard is considered here. A suitable coordinate transformation leads to the problem of a particle in an unconventional hyperbilliard. A dynamical map can be readily…

Condensed Matter · Physics 2009-10-30 Lilia Meza-Montes , Sergio E. Ulloa

We numerically investigate the orbital dynamics of a spacecraft, or a comet, or an asteroid in the Pluto-Charon system in a scattering region around Charon using the planar circular restricted three-body problem. The test particle can move…

Earth and Planetary Astrophysics · Physics 2017-09-28 Euaggelos E. Zotos

We present distributions of orbital parameters of infalling satellites of $\Lambda$CDM haloes in the mass range $10^{12}-10^{14}$M$_\odot$, which represent the initial conditions for the subsequent evolution of substructures within the host…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-22 Lilian Jiang , Shaun Cole , Till Sawala , Carlos S. Frenk

The dynamics in weakly chaotic Hamiltonian systems strongly depends on initial conditions and little can be affirmed about generic behaviors. Using two distinct Hamiltonian systems, namely one particle in an open rectangular billiard and…

Chaotic Dynamics · Physics 2013-01-30 Marcelo S. Custódio , Cesar Manchein , Marcus W. Beims

As a contribution to the inverse scattering problem for classical chaotic systems, we show that one can select sequences of intervals of continuity, each of which yields the information about period, eigenvalue and symmetry of one unstable…

chao-dyn · Physics 2016-08-31 Thomas Bütikofer , Christof Jung , Thomas H. Seligman

Have you ever played or watched a game of pool? If so, you have already seen a billiard system in action. In mathematics and physics, a billiard system describes a ball that moves in straight lines and bounces off walls. Despite these…

Dynamical Systems · Mathematics 2025-08-27 Weiqi Chu , Matthew Dobson

From extensive numerical simulations, we find that periodic polygonal billiard channels with angles which are irrational multiples of pi generically exhibit normal diffusion (linear growth of the mean squared displacement) when they have a…

Statistical Mechanics · Physics 2007-05-23 David P. Sanders , Hernan Larralde

In this short note we consider the finite-dimensional distributions of sets of states generated by dispersing billiards with a random initial condition. We establish a functional correlation bound on the distance between the…

Dynamical Systems · Mathematics 2017-04-24 Juho Leppänen , Mikko Stenlund

In billiard systems with a flux line semiclassical approximations for the density of states contain contributions from periodic orbits as well as from diffractive orbits that are scattered on the flux line. We derive a semiclassical…

chao-dyn · Physics 2010-03-09 Martin Sieber

We propose a flower shape billiard in order to study the irregular parameter dependence of chaotic normal diffusion. Our model is an open system consisting of periodically distributed obstacles of flower shape, and it is strongly chaotic…

Chaotic Dynamics · Physics 2009-11-07 Takahisa Harayama , Rainer Klages , Pierre Gaspard

We present experimental studies of the geometry-specific quantum scattering in microwave billiards of a given shape. We perform full quantum mechanical scattering calculations and find an excellent agreement with the experimental results.…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 T. Blomquist , H. Schanze , I. V. Zozoulenko , H. -J. Stockmann

We study the effect of edge diffraction on the semiclassical analysis of two dimensional quantum systems by deriving a trace formula which incorporates paths hitting any number of vertices embedded in an arbitrary potential. This formula is…

chao-dyn · Physics 2009-10-28 Henrik Bruus , Niall D. Whelan