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Perpendicular ion heating in turbulence and reconnection: magnetic moment breaking by coherent fluctuations.

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Title: Perpendicular ion heating in turbulence and reconnection: magnetic moment breaking by coherent fluctuations.
Source: Journal of Plasma Physics. Feb2026, Vol. 92 Issue 1, p1-30. 30p.
Subjects: Magnetic reconnection, Plasma heating, Plasma turbulence, Cyclotron resonance, Turbulence, Diffusion kinetics, Plasma physics
Abstract: We study the interaction of an ion with a fluctuation in the electromagnetic fields that is localised in both space and time. We study the scale dependence of the interaction in both space and time, deriving a generic form for the ion's energy change, which involves an exponential cutoff based on the characteristic time scale of the electromagnetic fluctuation. This leads to diffusion in energy in both $v_\perp$ and $v_\parallel$. We show how to apply our results to general plasma physics phenomena, and specifically to Alfvénic turbulence and to reconnection. Our theory can be viewed as a unification of previous models of stochastic ion heating, cyclotron heating and reconnection heating in a single theoretical framework. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Plasma Physics is the property of Cambridge University Press and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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Header DbId: egs
DbLabel: Engineering Source
An: 192774755
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PubType: Academic Journal
PubTypeId: academicJournal
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Items – Name: Title
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  Data: Perpendicular ion heating in turbulence and reconnection: magnetic moment breaking by coherent fluctuations.
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Plasma+Physics%22">Journal of Plasma Physics</searchLink>. Feb2026, Vol. 92 Issue 1, p1-30. 30p.
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  Data: <searchLink fieldCode="DE" term="%22Magnetic+reconnection%22">Magnetic reconnection</searchLink><br /><searchLink fieldCode="DE" term="%22Plasma+heating%22">Plasma heating</searchLink><br /><searchLink fieldCode="DE" term="%22Plasma+turbulence%22">Plasma turbulence</searchLink><br /><searchLink fieldCode="DE" term="%22Cyclotron+resonance%22">Cyclotron resonance</searchLink><br /><searchLink fieldCode="DE" term="%22Turbulence%22">Turbulence</searchLink><br /><searchLink fieldCode="DE" term="%22Diffusion+kinetics%22">Diffusion kinetics</searchLink><br /><searchLink fieldCode="DE" term="%22Plasma+physics%22">Plasma physics</searchLink>
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  Label: Abstract
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  Data: We study the interaction of an ion with a fluctuation in the electromagnetic fields that is localised in both space and time. We study the scale dependence of the interaction in both space and time, deriving a generic form for the ion's energy change, which involves an exponential cutoff based on the characteristic time scale of the electromagnetic fluctuation. This leads to diffusion in energy in both $v_\perp$ and $v_\parallel$. We show how to apply our results to general plasma physics phenomena, and specifically to Alfvénic turbulence and to reconnection. Our theory can be viewed as a unification of previous models of stochastic ion heating, cyclotron heating and reconnection heating in a single theoretical framework. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Plasma Physics is the property of Cambridge University Press and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1017/S0022377825101177
    Languages:
      – Code: eng
        Text: English
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      Pagination:
        PageCount: 30
        StartPage: 1
    Subjects:
      – SubjectFull: Magnetic reconnection
        Type: general
      – SubjectFull: Plasma heating
        Type: general
      – SubjectFull: Plasma turbulence
        Type: general
      – SubjectFull: Cyclotron resonance
        Type: general
      – SubjectFull: Turbulence
        Type: general
      – SubjectFull: Diffusion kinetics
        Type: general
      – SubjectFull: Plasma physics
        Type: general
    Titles:
      – TitleFull: Perpendicular ion heating in turbulence and reconnection: magnetic moment breaking by coherent fluctuations.
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            – D: 01
              M: 02
              Text: Feb2026
              Type: published
              Y: 2026
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              Value: 92
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