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We report a dynamical phase transition from integrability to non-integrability in a simple oval-like billiard with boundary $R(\theta)=1+\epsilon\cos(p\theta)$. For $\epsilon=0$, the phase space is {\it foliated} by invariant curves…

We explore the critical parameters responsible for the transition from integrability to chaos in a family of billiards combining elliptical and oval deformations. Unlike standard oval billiards, where a known critical parameter governs the…

混沌动力学 · 物理学 2026-05-04 Anne Kétri P. da Fonseca , Joelson D. V. Hermes , Edson D. Leonel

We explore the concept of scaling invariance in a type of dynamical systems that undergo a transition from order (regularity) to disorder (chaos). The systems are described by a two-dimensional, nonlinear mapping that preserves the area in…

混沌动力学 · 物理学 2025-04-09 Edson D. Leonel

We investigated the unbounded diffusion observed in a time-dependent oval-shaped billiard and its suppression owing to inelastic collisions with the boundary. The main focus is on the behavior of the diffusion coefficient, which plays a key…

混沌动力学 · 物理学 2025-12-10 Anne Kétri P. da Fonseca , Diego F. M. Oliveira , Edson D. Leonel

We revisit a time-dependent, oval-shaped billiard to investigate a phase transition from bounded to unbounded energy growth. In the static case, the phase space exhibits a mixed structure. The chaotic sea in the static scenario leads to…

We consider the motion of a particle subjected to the constant gravitational field and scattered inelasticaly by hard boundaries which possess the shape of parabola, wedge, and hyperbola. The billiard itself performs oscillations. The…

混沌动力学 · 物理学 2007-05-23 A. Z. Gorski , T. Srokowski

We analyse the classical and quantum behaviour of a particle trapped in a diamond shaped billiard. We defined this billiard as a half stadium connected with a triangular billiard. A parameter $\xi$ which gradually change the shape of the…

混沌动力学 · 物理学 2012-05-23 R. Salazar , G. Téllez , D. Jaramillo , D. L. González

Integrability of a square billiard is spontaneously broken as it rotates about one of its corners. The system becomes quasi-integrable where the invariant tori are broken with respect to a certain parameter, $\lambda = 2E/\omega^{2}$ where…

混沌动力学 · 物理学 2014-06-13 Nandan Jha , Sudhir R. Jain

We consider chaotic billiards in d dimensions, and study the matrix elements M_{nm} corresponding to general deformations of the boundary. We analyze the dependence of |M_{nm}|^2 on \omega = (E_n-E_m)/\hbar using semiclassical…

混沌动力学 · 物理学 2009-10-31 Alex Barnett , Doron Cohen , Eric J. Heller

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…

混沌动力学 · 物理学 2022-02-16 J. Ahmed , C. Cox , B. Wang

Generic one-parameter billiards are studied both classically and quantally. The classical dynamics for the billiards makes a transition from regular to fully chaotic motion through intermediary soft chaotic system. The energy spectra of the…

chao-dyn · 物理学 2007-05-23 Sunghwan Rim , Soo-Young Lee , Eui-Soon Yim , C. H. Lee

Some dynamical properties for a dissipative time-dependent oval-shaped billiard are studied. The system is described in terms of a four-dimensional nonlinear mapping. Dissipation is introduced via inelastic collisions of the particle with…

混沌动力学 · 物理学 2011-01-25 Diego F. M. Oliveira , Edson D. Leonel

In this work, we perform a statistical study on Dirac Billiards in the extreme quantum limit (a single open channel on the leads). Our numerical analysis uses a large ensemble of random matrices and demonstrates the preponderant role of…

介观与纳米尺度物理 · 物理学 2016-09-22 A. J. Nascimento Júnior , M. S. M. Barros , J. G. G. S. Ramos , A. L. R. Barbosa

In generic Hamiltonian systems with a mixed phase space chaotic transport may be directed and ballistic rather than diffusive. We investigate one particular model showing this behaviour, namely a spatially periodic billiard chain in which…

混沌动力学 · 物理学 2009-11-11 Holger Schanz , Manamohan Prusty

We report on the numerical simulation of the double-slit experiment, where the initial wave-packet is bounded inside a billiard domain with perfectly reflecting walls. If the shape of the billiard is such that the classical ray dynamics is…

混沌动力学 · 物理学 2009-11-10 Giulio Casati , Tomaz Prosen

We adapt ideas from geometrical optics and classical billiard dynamics to consider particle trajectories with constant velocity on a cone with specular reflections off an elliptical boundary formed by the intersection with a tilted plane,…

混沌动力学 · 物理学 2025-08-06 Lara Braverman , David R. Nelson

We report on the experimental investigation of the properties of the eigenvalues and wavefunctions and the fluctuation properties of the scattering matrix of closed and open billiards, respectively, of which the classical dynamics undergoes…

量子物理 · 物理学 2019-10-07 Runzu Zhang , Weihua Zhang , Barbara Dietz , Chai Guozhi , Liang Huang

The geometry of a billiard boundary fundamentally governs its dynamics, ranging from integrable to mixed and fully chaotic regimes. Bean- and peanut-shaped billiards have varying curvature with both focusing and defocusing walls without a…

混沌动力学 · 物理学 2026-05-07 Pranaya Pratik Das , Tanmayee Patra , Biplab Ganguli

The purpose of this paper is to study the dynamics of a square billiard with a non-standard reflection law such that the angle of reflection of the particle is a linear contraction of the angle of incidence. We present numerical and…

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…

混沌动力学 · 物理学 2015-05-19 Zoran Levnajić , Tomaž Prosen
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