On chiral magnetic effect in Weyl superfluid 3He-A

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Volovik, G. E.
dc.date.accessioned 2017-05-31T06:03:44Z
dc.date.available 2017-05-31T06:03:44Z
dc.date.issued 2017-01
dc.identifier.citation Volovik , G E 2017 , ' On chiral magnetic effect in Weyl superfluid 3 He-A ' JETP Letters , vol 105 , no. 1 , pp. 34–37 . DOI: 10.1134/S0021364017010076 en
dc.identifier.issn 0021-3640
dc.identifier.issn 1090-6487
dc.identifier.other PURE UUID: 9262cc45-dcdd-47d2-b49b-00f21b7a0a15
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/on-chiral-magnetic-effect-in-weyl-superfluid-3hea(9262cc45-dcdd-47d2-b49b-00f21b7a0a15).html
dc.identifier.other PURE LINK: http://www.scopus.com/inward/record.url?scp=85008500406&partnerID=8YFLogxK
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/13242066/On_chiral_magnetic_effect_in_Weyl_superfluid_3He_A.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/26526
dc.description | openaire: EC/H2020/694248/EU//TOPVAC
dc.description.abstract In the theory of the chiral anomaly in relativistic quantum field theories (RQFT) some results depend on regularization scheme at ultraviolet. In the chiral superfluid 3He-A, which contains two Weyl points and also experiences the effects of chiral anomaly, the “trans-Planckian” physics is known and the results can be obtained without regularization. We discuss this on example of the chiral magnetic effect (CME), which has been observed in 3He-A in 90’s [1]. There are two forms of the contribution of the CME to the Chern-Simons term in free energy, perturbative and non-perturbative. The perturbative term comes from the fermions living in the vicinity of the Weyl point, where the fermions are “relativistic” and obey the Weyl equation. The non-perturbative term originates from the deep vacuum, being determined by the separation of the two Weyl points in momentum space. Both terms are obtained using the Adler–Bell–Jackiw equation for chiral anomaly, and both agree with the results of the microscopic calculationsin the “trans-Planckian” region. Existence of the two nonequivalent forms of the Chern-Simons term demonstrates that the results obtained within the RQFT depend on the specific properties of the underlying quantum vacuum and may reflect different physical phenomena in the same vacuum. en
dc.format.extent 4
dc.format.extent 34–37
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation info:eu-repo/grantAgreement/EC/H2020/694248/EU//TOPVAC
dc.relation.ispartofseries JETP Letters en
dc.relation.ispartofseries Volume 105, issue 1 en
dc.rights openAccess en
dc.subject.other Physics and Astronomy (miscellaneous) en
dc.subject.other 114 Physical sciences en
dc.title On chiral magnetic effect in Weyl superfluid 3He-A en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Applied Physics
dc.subject.keyword Physics and Astronomy (miscellaneous)
dc.subject.keyword 114 Physical sciences
dc.identifier.urn URN:NBN:fi:aalto-201705315141
dc.identifier.doi 10.1134/S0021364017010076
dc.date.embargo info:eu-repo/date/embargoEnd/2018-02-01

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