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  1. iopscience.iop.org

    The driving mechanism of these cascades is the emission of gamma-ray photons and their conversion into pairs via quantum electrodynamics (QED) processes. In this work, we present 2D particle-in-cell simulations of pair cascades in pulsar polar caps with realistic magnetic field geometry that include the relevant QED processes from first principles.
    Author:Fábio Cruz, Thomas Grismayer, Alexander Y. Chen, Anatoly Spitkovsky, Luis O. SilvaPublished:2021
    • IOPscience

      Coherent Emission from QED Cascades in Pulsar Polar Caps Fábio Cruz1, Thomas Grismayer1, Alexander Y. Chen2, Anatoly Spitkovsky3, and Luis O. Silva1 1 GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal; fabio.cruz@tecnico.ulisboa.pt 2 JILA, University of Colorado Boulder, 440 UCB, Boulder, CO 80309, USA

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  3. Pulsar magnetospheres are thought to be filled with electron-positron plasma generated in pair cascades. The driving mechanism of these cascades is the emission of gamma-ray photons and their conversion into pairs via Quantum Electrodynamics (QED) processes. In this work, we present 2D particle-in-cell simulations of pair cascades in pulsar polar caps with realistic magnetic field geometry ...
    Author:Fábio Cruz, Thomas Grismayer, Alexander Y. Chen, Anatoly Spitkovsky, Luis O. SilvaPublished:2021
  4. iopscience.iop.org

    Coherent Emission from QED Cascades in Pulsar Polar Caps Fábio Cruz1, Thomas Grismayer1, Alexander Y. Chen2, Anatoly Spitkovsky3, and Luis O. Silva1 1 GoLP/Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal; fabio.cruz@tecnico.ulisboa.pt 2 JILA, University of Colorado Boulder, 440 UCB, Boulder, CO 80309, USA
    Author:Fábio Cruz, Thomas Grismayer, Alexander Y. Chen, Anatoly Spitkovsky, Luis O. SilvaPublished:2021
  5. collaborate.princeton.edu

    title = "Coherent Emission from QED Cascades in Pulsar Polar Caps", abstract = "Pulsar magnetospheres are thought to be filled with electron-positron plasma generated in pair cascades. The driving mechanism of these cascades is the emission of gamma-ray photons and their conversion into pairs via quantum electrodynamics (QED) processes.
    Author:Fábio Cruz, Thomas Grismayer, Alexander Y. Chen, Anatoly Spitkovsky, Luis O. SilvaPublished:2021
  6. ar5iv.labs.arxiv.org

    The driving mechanism of these cascades is the emission of gamma-ray photons and their conversion into pairs via Quantum Electrodynamics (QED) processes. In this work, we present 2D particle-in-cell simulations of pair cascades in pulsar polar caps with realistic magnetic field geometry that include the relevant QED processes from first principles.
  7. semanticscholar.org

    Pulsar magnetospheres are thought to be filled with electron-positron plasma generated in pair cascades. The driving mechanism of these cascades is the emission of gamma-ray photons and their conversion into pairs via quantum electrodynamics (QED) processes. In this work, we present 2D particle-in-cell simulations of pair cascades in pulsar polar caps with realistic magnetic field geometry ...
  8. academic.oup.com

    Apr 9, 2024Schematic representation of the polarized QED cascade over a pulsar polar cap. High-energy e ± particles, drifting in the curved magnetic field, emit γ ∥ photons through CR, which subsequently convert into e ± pairs. The resulting e ± pairs can emit both γ ∥ and γ ⊥ photons via SR. The symbols γ ∥ and γ ⊥ denote photons polarized parallel and perpendicular to the plane of the ...
  9. Jan 18, 2024This paper aims to investigate the effect of photon polarization during the QED cascade occurring over the polar cap of a pulsar. We employ a Monte Carlo-based QED algorithm that accurately accounts for both spin and polarization effects during photon emission and pair production in both single-particle and particle-in-cell (PIC) simulations.
  10. ui.adsabs.harvard.edu

    Pulsar magnetospheres are thought to be filled with electron-positron plasma generated in pair cascades. The driving mechanism of these cascades is the emission of gamma-ray photons and their conversion into pairs via quantum electrodynamics (QED) processes. In this work, we present 2D particle-in-cell simulations of pair cascades in pulsar polar caps with realistic magnetic field geometry ...
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