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Anomalous transport and generalized axial charge

Author(s)
Kirilin, Vladimir P.; Sadofyev, Andrey
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Abstract
In this paper we continue studying the modification of the axial charge in chiral media by macroscopic helicities. Recently it was shown that magnetic reconnections result in a persistent current of zero mode along flux tubes. Here we argue that in general a change in the helical part of the generalized axial charge results in the same phenomenon. Thus one may say that there is a novel realization of chiral effects requiring no initial chiral asymmetry. The transfer of flow helicity to zero modes is analyzed in a toy model based on a vortex reconnection in a chiral superfluid. Then, we discuss the balance between the two competing processes effect of reconnections and the chiral instability on the example of magnetic helicity. We argue that in the general case there is a possibility for the distribution of the axial charge between the magnetic and fermionic forms at the end of the instability.
Date issued
2017-07
URI
http://hdl.handle.net/1721.1/111599
Department
Massachusetts Institute of Technology. Center for Theoretical Physics; Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
Physical Review D
Publisher
American Physical Society
Citation
Kirilin, Vladimir P. and Sadofyev, Andrey V. "Anomalous transport and generalized axial charge" Physical Review D 96, 1(July 2017): 016019 © 2017 American Physical Society
Version: Final published version
ISSN
2470-0010
2470-0029

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