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We construct an autonomous chaotic Hamiltonian ratchet as a channel billiard subdivided by equidistant walls attached perpendicularly to one side of the channel, leaving an opening on the opposite side. A static homogeneous magnetic field…

Chaotic Dynamics · Physics 2008-11-03 Walter Acevedo , Thomas Dittrich

We present an extensive numerical study of spectral statistics and eigenfunctions of quantized triangular billiards. We compute two million consecutive eigenvalues for six representative cases of triangular billiards, three with generic…

Chaotic Dynamics · Physics 2022-01-25 Črt Lozej , Giulio Casati , Tomaž Prosen

We design a computational experiment in which a quantum particle tunnels into a billiard of variable shape and scatters out of it through a double-slit opening on the billiard's base. The interference patterns produced by the scattered…

Chaotic Dynamics · Physics 2015-05-19 Zoran Levnajić , Tomaž Prosen

Billiards are flat cavities where a particle is free to move between elastic collisions with the boundary. In chaos theory these systems are simple prototypes, their conservative dynamics of a billiard may vary from regular to chaotic,…

Chaotic Dynamics · Physics 2023-12-19 T. Araújo Lima , R. B. do Carmo

For classical billiards we suggest that a matrix of action or length of trajectories in conjunction with statistical measures, level spacing distribution and spectral rigidity, can be used to distinguish chaotic from integrable systems. As…

Chaotic Dynamics · Physics 2011-07-12 J F Laprise , A Hosseinizadeh , H Kroger , R Zomorrodi

Chaotic properties of symmetrical two-dimensional stadium-like billiards with elliptical arcs are studied numerically and analytically. For the two-parameter truncated elliptical billiard the existence and linear stability of several…

Chaotic Dynamics · Physics 2016-09-13 V. Lopac , A. Simic

A hard-wall billiard is a mathematical model describing the confinement of a free particle that collides specularly and instantaneously with boundaries and discontinuities. Soft billiards are a generalization that includes a smooth boundary…

Chaotic Dynamics · Physics 2026-01-07 A. González-Andrade , H. N. Núñez-Yépez , M. A. Bastarrachea-Magnani

Astute variations in the geometry of mathematical billiard tables have been and continue to be a source of understanding their wide range of dynamical behaviors, from regular to chaotic. Viewing standard specular billiards in the broader…

Chaotic Dynamics · Physics 2022-02-16 J. Ahmed , C. Cox , B. Wang

In this paper, we show that two-dimensional billiards with point interactions inside exhibit a chaotic nature in the microscopic world, although their classical counterpart is non-chaotic. After deriving the transition matrix of the system…

Quantum Physics · Physics 2007-05-23 Takaomi Shigehara , Hiroshi Mizoguchi , Taketoshi Mishima , Taksu Cheon

In standard (mathematical) billiards a point particle moves uniformly in a billiard table with elastic reflections off the boundary. We show that in transition from mathematical billiards to physical billiards, where a finite size hard…

Dynamical Systems · Mathematics 2019-10-23 L. A. Bunimovich

The boundary of the lemon billiards is defined by the intersection of two circles of equal unit radius with the distance $2B$ between their centers, as introduced by Heller and Tomsovic in Phys. Today {\bf 46} 38 (1993). This paper is a…

Chaotic Dynamics · Physics 2021-05-03 Črt Lozej , Dragan Lukman , Marko Robnik

We illustrate some of the techniques to identify chaos signatures at the quantum level using as a guiding examples some systems where a particle is constrained to move on a radial symmetric, but non planar, surface. In particular, two…

Quantum Physics · Physics 2012-06-12 Robert Paul Salazar , Gabriel Tellez

We study the classical and quantum mechanics of a three-dimensional stadium billiard. It consists of two quarter cylinders that are rotated with respect to each other by 90 degrees, and it is classically chaotic. The billiard exhibits only…

Chaotic Dynamics · Physics 2008-05-13 B. Dietz , B. Moessner , T. Papenbrock , U. Reif , A. Richter

We perform numerical studies of the wave packet propagation through open quantum billiards whose classical counterparts exhibit regular and chaotic dynamics. We show that for t less or similar to tau (tau being the Heisenberg time), the…

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

We investigate chaotic scattering on an attractive step potential with a quadrupolar deformation. The phase space features of the bound billiard are studied by using the notion of symmetry lines to find periodic orbits. We show that the…

chao-dyn · Physics 2009-10-30 Vincent J. Daniels , Michel Vallieres , Jian Min Yuan

We present first measurements on a superconducting three-dimensional, partly chaotic microwave billiard shaped like a small deformed cup. We analyze the statistical properties of the measured spectrum in terms of several methods originally…

We study the quantum behaviour of the stadium billiard. We discuss how the interplay between quantum localization and the rich structure of the classical phase space influences the quantum dynamics. The analysis of this model leads to new…

Condensed Matter · Physics 2009-10-31 Giulio Casati , Tomaz Prosen

We study the dynamical properties of a particle in a non-planar square billiard. The plane of the billiard has a sinusoidal shape. We consider both the static and time-dependent plane. We study the affect of different parameters that…

Computational Physics · Physics 2016-12-06 Sedighe Raeisi , Parvin Eslami

In this paper we have tested several general numerical methods in solving the quantum billiards, such as the boundary integral method (BIM) and the plane wave decomposition method (PWDM). We performed extensive numerical investigations of…

chao-dyn · Physics 2009-10-31 Baowen Li , Marko Robnik , Bambi Hu

We discuss the interplay between the piece-line regular and vertex-angle singular boundary effects, related to integrability and chaotic features in rational polygonal billiards. The approach to controversial issue of regular and irregular…

Mathematical Physics · Physics 2008-04-24 Valery B. Kokshenev