Subash Adhikari

Postdoctoral Researcher

Scale Filtering Analysis of Collisionless Reconnection and its Associated Turbulence


Journal article


Subash Adhikari, Yan Yang, William H. Mattaeus, Paul A. Cassak, Tulasi N. Parashar, Michael A. Shay
Physics of Plasmas, vol. 31, 2024, p. 020701


Cite

Cite

APA   Click to copy
Adhikari, S., Yang, Y., Mattaeus, W. H., Cassak, P. A., Parashar, T. N., & Shay, M. A. (2024). Scale Filtering Analysis of Collisionless Reconnection and its Associated Turbulence. Physics of Plasmas, 31, 020701. https://doi.org/10.1063/5.0185132


Chicago/Turabian   Click to copy
Adhikari, Subash, Yan Yang, William H. Mattaeus, Paul A. Cassak, Tulasi N. Parashar, and Michael A. Shay. “Scale Filtering Analysis of Collisionless Reconnection and Its Associated Turbulence.” Physics of Plasmas 31 (2024): 020701.


MLA   Click to copy
Adhikari, Subash, et al. “Scale Filtering Analysis of Collisionless Reconnection and Its Associated Turbulence.” Physics of Plasmas, vol. 31, 2024, p. 020701, doi:10.1063/5.0185132.


BibTeX   Click to copy

@article{subash2024a,
  title = {Scale Filtering Analysis of Collisionless Reconnection and its Associated Turbulence},
  year = {2024},
  journal = {Physics of Plasmas},
  pages = {020701},
  volume = {31},
  doi = {10.1063/5.0185132},
  author = {Adhikari, Subash and Yang, Yan and Mattaeus, William H. and Cassak, Paul A. and Parashar, Tulasi N. and Shay, Michael A.}
}

Abstract

Previously, using an incompressible von Karman–Howarth formalism, the behavior of cross-scale energy transfer in magnetic reconnection and turbulence was found to be essentially identical to each other, independent of an external magnetic (guide) field, in the inertial and energy containing ranges [Adhikari et al., Phys. Plasmas 30, 082904 (2023)]. However, this description did not account for the energy transfer in the dissipation range for kinetic plasmas. In this Letter, we adopt a scale-filtering approach to investigate this previously unaccounted-for energy transfer channel in reconnection. Using kinetic particle-in-cell simulations of antiparallel and component reconnection, we show that the pressure–strain interaction becomes important at scales smaller than the ion inertial length, where the nonlinear energy transfer term drops off. Also, the presence of a guide field makes a significant difference in the morphology of the scale-filtered energy transfer. These results are consistent with kinetic turbulence simulations, suggesting that the pressure strain interaction is the dominant energy transfer channel between electron scales and ion scales.