Emergent Majorana mass and axion couplings in superfluids
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Wilczek-2014-Emergent Majorana ma.pdf
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534.67 KB
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Author(s)
Wilczek, Frank
Date Issued
August 2014
Journal
New Journal of Physics
Publisher
IOP Publishing
Citation
Wilczek, Frank. “Emergent Majorana Mass and Axion Couplings in Superfluids.” New Journal of Physics 16, no. 8 (August 1, 2014): 082003. © 2014 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft
Version
Final published version
Abstract
Axions (in the general sense) may acquire qualitatively new couplings inside superfluids. Their conventional couplings to fermions, in empty space, involve purely imaginary masses; the new couplings involve emergent Majorana masses. A generalized concept of Majorana mass is proposed, which allows continuous interpolation between Majorana and Dirac fermions, and also extension to bosons. The possibility of weak links for axions, recently put forward, is analyzed and replaced with a non-local analogue.
MIT Department
Massachusetts Institute of Technology. Center for Theoretical Physics
Massachusetts Institute of Technology. Department of Physics
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Creative Commons Attribution
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DOI of Published Version
https://doi.org/10.1088/1367-2630/16/8/082003
