PIC simulations show E·B ≠ 0 regions reduce magnetic helicity in sub-ion turbulence, and a new history-dependent helicity density produces time-independent intermediate-scale plateaus consistent with cancellation-dominated 2D decay.
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MMS data shows perpendicular electrons dominate j·E dissipation in magnetotail magnetic structures during turbulent reconnection, with bidirectional energy transfer and quantified mechanisms including parallel E, Fermi, betatron, and polarization effects.
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Kinetic Route to Helicity-Constrained Decay
PIC simulations show E·B ≠ 0 regions reduce magnetic helicity in sub-ion turbulence, and a new history-dependent helicity density produces time-independent intermediate-scale plateaus consistent with cancellation-dominated 2D decay.
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Statistical study of energy dissipation in magnetic structures during turbulent reconnection in the Earth's magnetotail
MMS data shows perpendicular electrons dominate j·E dissipation in magnetotail magnetic structures during turbulent reconnection, with bidirectional energy transfer and quantified mechanisms including parallel E, Fermi, betatron, and polarization effects.