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We study coherent wave scattering through waveguides with a step-like surface disorder and find distinct enhancements in the reflection coefficients at well-defined resonance values. Based on detailed numerical and analytical calculations,…

Disordered Systems and Neural Networks · Physics 2014-05-13 J. Doppler , J. A. Méndez-Bermúdez , J. Feist , O. Dietz , D. O. Krimer , N. M. Makarov , F. M. Izrailev , S. Rotter

In this Letter, we report on the effects of a vorticity filament on the coherent backscattering cone. Using ultrasonic waves in a strongly reverberating cavity, we experimentally show that the discrete number of loops of acoustic paths…

Disordered Systems and Neural Networks · Physics 2019-07-22 Geoffroy J. Aubry , Philippe Roux

We investigate the relations between the spin structure functions in the scaling and resonance regions. We examine the possible duality between the two, and draw inferences for the behavior of the asymmetry A_1 at large x. Finally, we point…

High Energy Physics - Phenomenology · Physics 2009-10-31 Carl E. Carlson , Nimai C. Mukhopadhyay

Rotating black holes can produce superradiant clouds of ultralight bosons. When the black hole is part of a binary system, its cloud can undergo resonances and ionization. These processes leave a distinct signature on the gravitational…

General Relativity and Quantum Cosmology · Physics 2025-08-19 Giovanni Maria Tomaselli , Thomas F. M. Spieksma , Gianfranco Bertone

Beams of light with a large topological charge significantly change their spatial structure when they are focused strongly. Physically, it can be explained by an emerging electromagnetic field component in the direction of propagation,…

Quantum Physics · Physics 2018-06-08 Mario Krenn , Anton Zeilinger

Resonant coupling of a vibration to a cavity mode has been reported to dramatically modify spontaneous Raman scattering, but subsequent studies have produced conflicting results. In this Letter, we develop a microscopic quantum framework…

Mesoscale and Nanoscale Physics · Physics 2025-11-04 Maxime Dherbécourt , Joël Bellessa , Clémentine Symonds , Guillaume Weick , David Hagenmüller

An analysis of structure in rotation measure (RM) across the sky based on the RM catalog of Taylor et al. (2009) is presented. Several resolved RM structures are identified with structure in the local ISM, including radio loops I, II, and…

Astrophysics of Galaxies · Physics 2015-05-20 J. M. Stil , A. R. Taylor , C. Sunstrum

In this study, we investigate the image of a rotating compact object (CO) illuminated by a geometrically thin, optically thin disk on the equatorial plane. As the radius of the CO's surface fluctuates, the CO may partially or entirely…

General Relativity and Quantum Cosmology · Physics 2024-11-26 Xiangyu Wang , Xiaobao Wang , Hai-Qing Zhang , Minyong Guo

Open cavities are often an essential component in the design of ultra-thin subwavelength metasurfaces and a typical requirement is that cavities have precise, often low frequency, resonances whilst simultaneously being physically compact.…

Applied Physics · Physics 2025-01-03 Sebastiano Cominelli , Benjamin Vial , Sébastien Guenneau , Richard V. Craster

Theoretical investigations of different routes to coherent perfect polarization rotation illustrate its phenomenological connection with coherent perfect absorption. Studying systems with broken parity, layering, combined Faraday rotation…

The dynamics of a large quantum spin coupled parametrically to an optical resonator is treated in analogy with the motion of a cantilever in cavity optomechanics. New spin optodynamic phenonmena are predicted, such as cavity-spin…

Quantum Physics · Physics 2015-05-19 N. Brahms , D. M. Stamper-Kurn

One of the most fundamental properties of electromagnetism and special relativity is the coupling between the spin of an electron and its orbital motion. This is at the origin of the fine structure in atoms, the spin Hall effect in…

Mesoscale and Nanoscale Physics · Physics 2015-04-22 V. G. Sala , D. D. Solnyshkov , I. Carusotto , T. Jacqmin , A. Lemaître , H. Terças , A. Nalitov , M. Abbarchi , E. Galopin , I. Sagnes , J. Bloch , G. Malpuech , A. Amo

Spin-polarizabilities are predicted by calculating the cross-section difference $\sigma_{3/2}-\sigma_{1/2}$ from available data for the resonance couplings $A_{3/2}$ and $A_{1/2}$ and CGLN amplitudes. The forward spin-polarizabilities are…

High Energy Physics - Phenomenology · Physics 2013-06-26 Martin Schumacher , M. I. Levchuk

We use a spatially resolved cavity ring-down technique to show that the 2D eigenmode of an unstable optical cavity has a fractal pattern, i.e. it looks the same at different length scales. In agreement with theory, we find that this pattern…

Optics · Physics 2007-05-23 Javier A. Loaiza , Eric R. Eliel , J. P. Woerdman

A theoretical approach for the interpretation of reflectance spectra of opal photonic crystals with fcc structure and (111) surface orientation is presented. It is based on the calculation of photonic bands and density of states…

Other Condensed Matter · Physics 2009-11-11 E. Pavarini , L. C. Andreani , C. Soci , M. Galli , F. Marabelli , D. Comoretto

We describe a gyroscope that measures rotation based on the effects of the rotation on the polarization of light. Rotation induces a differential phase shift in the propagation of left- and right-circularly polarized light and this phase…

We investigate the magnon-photon couplings by employing a small magnet within an irregular resonant cavity, which leads to a desirable nonreciprocity with a big isolation ratio. Moreover, the higher-order couplings between the spin wave…

Applied Physics · Physics 2021-06-02 Chi Zhang , Chenglong Jia , Yongzhang Shi , Changjun Jiang , Desheng Xue , C. K. Ong , Guozhi Chai

We investigate the small scale equidistribution properties of random waves in $\mathbb{R}^{n}$. Numerical evidence suggests that such objects display a fine scale filament structure. We show that the X-ray along any line segment is…

Analysis of PDEs · Mathematics 2023-01-10 Melissa Tacy

Superconducting microwave resonators are reliable circuits widely used for detection and as test devices for material research. A reliable determination of their external and internal quality factors is crucial for many modern applications,…

Superconductivity · Physics 2015-02-23 S. Probst , F. B. Song , P. A. Bushev , A. V. Ustinov , M. Weides

Motivated by realistic scattering processes of composite systems, we study the dynamics of a two-particle bound system which is scattered at a mirror. The physics of the scattering process will be discussed in the cases when only one…

Quantum Physics · Physics 2017-01-04 Friedemann Queisser , William G. Unruh