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相关论文: Wave Chaos in Rotating Optical Cavities

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Appearance of quantized vortices in a superfluid and a Bose-Einstein condensate (BEC) stems from their nontrivial response to broken time-reversal symmetry (TRS). Here we show that breaking of the TRS by, for example, rotation or an…

量子气体 · 物理学 2025-01-30 Natalia Masalaeva , Farokh Mivehvar

We consider sound wave propagation in a range-periodic acoustic waveguide in the deep ocean. It is demonstrated that vertical oscillations of a sound-speed perturbation, induced by ocean internal waves, influence near-axial rays in a…

混沌动力学 · 物理学 2015-06-19 L. E. Kon'kov , D. V. Makarov , E. V. Sosedko , M. Yu. Uleysky

Using finite difference time domain and band structure computer simulations, we show that it is possible to construct optical cavities and waveguide architectures in hyperuniform disordered photonic solids that are unattainable in photonic…

介观与纳米尺度物理 · 物理学 2013-11-12 Marian Florescu , Salvatore Torquato , Paul Steinhardt

We consider theoretically two coupled optical waveguides with a varying barrier height along the waveguides direction. The barrier could be constructed by the elongated island with a reduced refractive index (which acts as a potential…

光学 · 物理学 2009-11-13 Ramaz Khomeriki , Archil Ugulava , Levan Chotorlishvili

The optomechanical systems produce chaotic behaviour due to nonlinear interaction between photons and phonons, and the same systems are used to understand the synthetic fields as well. Here, we report on the study of chaotic behaviour in…

光学 · 物理学 2024-07-22 Souvik Mondal , Murilo S. Baptista , Kapil Debnath

Statistical fluctuations in the eigenvalues of the scattering, impedance and admittance matrices of 2-Port wave-chaotic systems are studied experimentally using a chaotic microwave cavity. These fluctuations are universal in that their…

无序系统与神经网络 · 物理学 2009-09-15 Sameer Hemmady , Xing Zheng , James Hart , Thomas M. Antonsen , Edward Ott , Steven M. Anlage

We study small-amplitude steady water waves with multiple critical layers. Those are rotational two-dimensional gravity-waves propagating over a perfect fluid of finite depth. It is found that arbitrarily many critical layers with cat's-eye…

数学物理 · 物理学 2015-05-18 Mats Ehrnström , Joachim Escher , Gabriele Villari

Spiral waves are ubiquitous in two-dimensional systems of chemical or biological oscillators coupled locally by diffusion. At the center of such spirals is a phase singularity, a topological defect where the oscillator amplitude drops to…

斑图形成与孤子 · 物理学 2010-03-16 Erik A. Martens , Carlo R. Laing , Steven H. Strogatz

We study the ultimate limits to the decoherence rate associated with dephasing processes. Fluctuating chaotic quantum systems are shown to exhibit extreme decoherence, with a rate that scales exponentially with the particle number, thus…

量子物理 · 物理学 2019-01-15 Zhenyu Xu , Luis Pedro García-Pintos , Aurélia Chenu , Adolfo del Campo

It is well known that the strongly deformed microcavity with fully chaotic ray dynamics cannot support high-Q modes due to its fast chaotic diffusion to the critical line of refractive emission. Here, we investigate how the Q factor is…

Our work presents a study on the nonlinear dynamical behavior for a microcavity semiconductor containing a quantum well. Using an external periodic perturbation in energy level we observe the periodic-doubling, quasiperiodic, and direct…

混沌动力学 · 物理学 2015-06-04 Hichem Eleuch , Awadhesh Prasad

Bohmian mechanics is a causal interpretation of quantum mechanics in which particles describe trajectories guided by the wave function. The dynamics in the vicinity of nodes of the wave function, usually called vortices, is regular if they…

量子物理 · 物理学 2009-11-11 Diego A. Wisniacki , Enrique R. Pujals

We demonstrate that the chaotic orbits of Prometheus and Pandora are due to interactions associated with the 121:118 mean motion resonance. Differential precession splits this resonance into a quartet of components equally spaced in…

天体物理学 · 物理学 2015-06-24 Peter Goldreich , Nicole Rappaport

We study spatially localized optical vortices created by self-trapping of partially incoherent light with a phase dislocation in a biased photorefractive crystal. In a contrast to the decay of coherent self-trapped vortex beams due to the…

斑图形成与孤子 · 物理学 2009-11-10 Kristian Motzek , Yuri S. Kivshar , Ming-Feng Shih , Grover A. Swartzlander

Methods of communications using chaotic signals use an ability of a chaos generator (encoder) and matched response system (decoder) to behave identically despite the instability of chaotic oscillations. Chaotic oscillations cover a wide…

chao-dyn · 物理学 2009-09-25 Nikolai F. Rulkov , Lev S. Tsimring

We study the classical dynamics of a membrane inside a cavity in the situation where this optomechanical system possesses a reflection symmetry. Symmetry breaking occurs through supercritical and subcritical pitchfork bifurcations of the…

量子物理 · 物理学 2017-01-11 C. Wurl , A. Alvermann , H. Fehske

The quantum dynamics of the coupling between a cavity optical field and a resonator microwave field via the electro-optic effect is studied. This coupling has the same form as the opto-mechanical coupling via radiation pressure, so all…

量子物理 · 物理学 2010-07-02 Mankei Tsang

A spinning test particle around a Schwarzschild black hole shows a chaotic behavior, if its spin is larger than a critical value. We discuss whether or not some peculiar signature of chaos appears in the gravitational waves emitted from…

广义相对论与量子宇宙学 · 物理学 2009-10-31 Shingo Suzuki , Kei-ichi Maeda

We demonstrate that geodesics in exact vacuum Kundt gravitational waves may exhibit a highly complicated behaviour. In fact, as in the previously studied case of non-homogeneous pp-waves, for specific choices of the structural function the…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Jiri Podolsky , David Kofron

We study quasi periodic and frequency locked states that can occur in a sinusoidally driven linear harmonic oscillator in the special relativistic regime. We show how the shift in natural frequency of the oscillator with increasing…

混沌动力学 · 物理学 2021-03-02 Derek C. Gomes , G. Ambika