English
Related papers

Related papers: Alfven-like waves along normal-superconductor phas…

200 papers

We show that an alpha effect is driven by the cosmic ray Bell instability exciting left-right asymmetric turbulence. Alfven waves of a preferred polarization have maximally helical motion, because the transverse motion of each mode is…

High Energy Astrophysical Phenomena · Physics 2012-06-21 Igor Rogachevskii , Nathan Kleeorin , Axel Brandenburg , David Eichler

Alfv\'en waves are primal and pervasive in space plasmas and significantly contributes to microscale fluctuations in the solar wind and some heliospheric processes. Here, we demonstrate the first observable distinct feature of Alfv\'en wave…

Space Physics · Physics 2018-10-16 Anil N. Raghav , Ankita Kule

Phase mixing of standing continuum Alfv\'en waves and/or continuum slow waves in atmospheric magnetic structures such as coronal arcades can create the apparent effect of a wave propagating across the magnetic field. We observe a prominence…

Solar and Stellar Astrophysics · Physics 2017-06-28 J. O. Raes , T. Van Doorsselaere , M. Baes , A. N. Wright

Nonlinear relations among frequencies and phases in modulational instability of circularly polarized Alfven waves are discussed, within the context of one dimensional, dissipation-less, unforced fluid system. We show that generation of…

Plasma Physics · Physics 2020-01-29 Yasuhiro Nariyuki , Tohru Hada

Recent work on Alfvenic turbulence by Goldreich & Sridhar (1995; GS) suggests that the energy cascades almost entirely perpendicular to the local magnetic field. As a result, the cyclotron resonance is unimportant in dissipating the…

Astrophysics · Physics 2009-10-30 Eliot Quataert

We explore superradiance for Alfv\'en waves (Alfv\'enic superradiance) in an axisymmetric rotating magnetosphere of a Kerr black hole within the force-free approximation. On the equatorial plane of the Kerr spacetime, the Alfv\'en wave…

General Relativity and Quantum Cosmology · Physics 2022-03-14 Sousuke Noda , Yasusada Nambu , Masaaki Takahashi , Takuma Tsukamoto

In this work we suggest a phenomenological theory of photogalvanic phenomena in superconducting materials and structures revealing the diode effect. Starting from a generalized London model including the quadratic nonlinearity in the…

Superconductivity · Physics 2024-06-17 S. V. Mironov , A. S. Mel'nikov , A. I. Buzdin

A nonlocal coupling mechanism to directly transfer the energy from large-scale Magnetohydrodynamic(MHD) Alfven waves to small-scale kinetic Alfven waves is presented. It is shown that the interaction between a MHD Alfven wave and a…

Solar and Stellar Astrophysics · Physics 2011-04-21 Zhao Jinsong , Wu Dejin , Lu Jianyong

Context. Magnetohydrodynamic (MHD) waves are ubiquitous in the solar atmosphere. In magnetic waveguides resonant absorption due to plasma inhomogeneity naturally transfers wave energy from large-scale motions to small-scale motions. In the…

Solar and Stellar Astrophysics · Physics 2015-06-03 R. Soler , J. Andries , M. Goossens

Alfv\'en waves are known to be important carriers of magnetic energy that could play a role in coronal heating and/or solar wind acceleration. As these waves are efficient energy carriers, how they are dissipated still remains one of the…

Solar and Stellar Astrophysics · Physics 2025-07-22 Anmol Kumar , Thomas A. Howson , Paolo Pagano , Ineke De Moortel

A Hamiltonian two-field gyrofluid model for kinetic Alfv\'en waves (KAWs) in a magnetized electron-proton plasma, retaining ion finite-Larmor-radius corrections and parallel magnetic field fluctuations, is used to study the inverse cascades…

Plasma Physics · Physics 2021-04-01 George Miloshevich , Dimitri Laveder , Thierry Passot , Pierre-Louis Sulem

Alfv\'enic waves have been proposed as an important energy transport mechanism in coronal loops, capable of delivering energy to both the corona and chromosphere and giving rise to many observed features, of flaring and quiescent regions.…

Solar and Stellar Astrophysics · Physics 2018-02-14 Jeffrey W. Reep , Alexander J. B. Russell , Lucas A. Tarr , James E. Leake

Hydromagnetic waves, especially those of frequencies in the range of a few milli-Hz to a few Hz observed in the Earth's magnetosphere, are categorized as Ultra Low Frequency (ULF) waves or pulsations. They have been extensively studied due…

Space Physics · Physics 2014-10-02 Jinlei Zheng , Qiang Hu , J. F. McKenzie , G. M. Webb

The purpose of this paper is to solve the inverse scattering problem of nonlinear Alfv\'en waves governed by the three dimensional ideal incompressible MHD system. Bridging together geometric methods and weighted energy estimates, we…

Analysis of PDEs · Mathematics 2022-12-07 Mengni Li

We predict the existence of surface waves in layered superconductors in the THz frequency range, below the Josephson plasma frequency $\omega_J$. This wave propagates along the vacuum-superconductor interface and dampens in both transverse…

Superconductivity · Physics 2009-11-11 Sergey Savel'ev , Valery Yampol'skii , Franco Nori

Using one-dimensional numerical simulations, we study the elementary process of Alfv\'{e}n wave reflection in a uniform medium, including nonlinear effects. In the linear regime, Alfv\'{e}n wave reflection is triggered only by the…

Solar and Stellar Astrophysics · Physics 2016-04-13 Munehito Shoda , Takaaki Yokoyama

Counterpropagating Alfv\'en waves are ubiquitously observed in many astrophysical environments, such as a star surface and a planetary foreshock. We discuss an efficient particle acceleration mechanism in two counterpropagating circularly…

High Energy Astrophysical Phenomena · Physics 2023-04-06 S. Isayama , K. Takahashi , S. Matsukiyo , T. Sano

In the framework of compressional magnetohydrodynamics (MHD), we numerically studied the commonly accepted presumption that the Alfv\'enic turbulence is generated by the collisions between counter-propagating Alfv\'en waves (AWs). In the…

Solar and Stellar Astrophysics · Physics 2022-05-11 S. V. Shestov , Y. M. Voitenko , A. N. Zhukov

Strong magnetic fields in the cores of stars are expected to significantly modify the behavior of gravity waves: this is likely the origin of suppressed dipole modes observed in many red giants. However, a detailed understanding of how such…

Solar and Stellar Astrophysics · Physics 2023-05-17 Nicholas Z. Rui , Jim Fuller

The propagation of linear Alfv\'en wave pulses in an inhomogeneous plasma near a 2D coronal null point is investigated. When a uniform plasma density is considered, it is seen that an initially planar Alfv\'en wavefront remains planar,…

Solar and Stellar Astrophysics · Physics 2014-07-08 J. A. McLaughlin