Fully Kinetic Simulation of 3D Kinetic Alfven Turbulence

Abstract

We present results from a three-dimensional particle-in-cell simulation of plasma turbulence, resembling the plasma conditions found at kinetic scales of the solar wind. The spectral properties of the turbulence in the subion range are consistent with theoretical expectations for kinetic Alfv\' en waves. Furthermore, we calculate the local anisotropy, defined by the relation $k_{\parallel }(k_{\perp })$, where $k_{\parallel }$ is a characteristic wave number along the local mean magnetic field at perpendicular scale $l_{\perp }\sim 1/k_{\perp }$. The subion range anisotropy is scale dependent with $k_{\parallel }<k_{\perp }$ and the ratio of linear to nonlinear time scales is of order unity, suggesting that the kinetic cascade is close to a state of critical balance. Our results compare favorably against a number of \emph{in situ} solar wind observations and demonstrate---from first principles---the feasibility of plasma turbulence models based on a critically balanced cascade of kinetic Alfv\' en waves.

revised manuscript; Fig. 4 was replaced to account for a small correction in the normalization of $k_{\parallel }$

References in corpus (21)

• Anisotropic scaling of magnetohydrodynamic turbulence
• Turbulent Heating in Galaxy Clusters Brightest in X-rays
• Kinetic Simulations of Magnetized Turbulence in Astrophysical Plasmas
• Recent progress in astrophysical plasma turbulence from solar wind observations
• One-to-one direct modeling of experiments and astrophysical scenarios: pushing the envelope on kinetic plasma simulations
• Wave turbulence in incompressible Hall MHD
• Imbalanced Strong MHD Turbulence
• Kinetic turbulence in relativistic plasma: from thermal bath to non-thermal continuum
• Magnetic reconnection as a driver for a sub-ion scale cascade in plasma turbulence
• Strong Imbalanced Turbulence
• Simulations of Electron Magnetohydrodynamic Turbulence
• Multiscale nature of the dissipation range in gyrokinetic simulations of Alfvénic turbulence
• Magnetorotational Turbulence and Dynamo in a Collisionless Plasma
• Collisionless Reconnection in Magnetohydrodynamic and Kinetic Turbulence
• Fully Kinetic Simulation of 3D Kinetic Alfven Turbulence
• Kinetic cascade in solar-wind turbulence: 3D3V hybrid-kinetic simulations with electron inertia
• Kinetic cascade beyond magnetohydrodynamics of solar wind turbulence in two-dimensional hybrid simulations
• Fully kinetic versus reduced-kinetic modelling of collisionless plasma turbulence
• Propinquity of current and vortex structures: effects on collisionless plasma heating
• The Structure of Plasma Heating in Gyrokinetic Alfvénic Turbulence
• Instabilities of collisionless current sheets revisited: the role of anisotropic heating

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