Remark on the dissipation of the magnetic helicity integral |
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| Authors: | P M Akhmet’ev O V Kunakovskaya V A Kutvitskii |
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| Institution: | (1) Pushkov Institute of Terrestrial Magnetism, Ionosphere, and Radiowave Propagation, RAS, Troitsk, Moscow Oblast, Russia;(2) Voronezh State University, Voronezh, Russia |
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| Abstract: | We prove that the current helicity integral for a thin magnetic tube is directly proportional to the twist Tw of field lines, which appears in the Călugărianu formula as a summand. Using this approach, we analyze the law of the variation
of magnetic helicity in a conducting medium with a nonzero magnetic diffusion coefficient and also the equation of the phase
transition of the magnetic field under early universe conditions.
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Translated from Teoreticheskaya i Matematicheskaya Fizika, Vol. 158, No. 1, pp. 150–160, January, 2009. |
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| Keywords: | magnetohydrodynamics magnetic helicity dissipative effect Că lugă rianu formula Fuller formula standard model |
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