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dc.contributor.authorColin, Samuelen_US
dc.contributor.authorWiseman, Howarden_US
dc.date.accessioned2017-04-24T13:09:47Z
dc.date.available2017-04-24T13:09:47Z
dc.date.issued2011en_US
dc.date.modified2012-06-11T22:35:21Z
dc.identifier.issn17518113en_US
dc.identifier.doi10.1088/1751-8113/44/34/345304en_US
dc.identifier.urihttp://hdl.handle.net/10072/42701
dc.description.abstractIn the standard model of particle physics, all fermions are fundamentally massless and only acquire their effective bare mass when the Higgs field condenses. Therefore, in a fundamental de Broglie-Bohm pilot-wave quantum field theory (valid before and after the Higgs condensation), position beables should be attributed to massless fermions. In our endeavour to build a pilot-wave theory of massless fermions, which would be relevant for the study of quantum non-equilibrium in the early universe, we are naturally led to Weyl spinors and to particle trajectories which give meaning to the 'zig-zag' picture of the electron discussed recently by Penrose. We show that a positive-energy massive Dirac electron of given helicity can be thought of as a superposition of positive and negative energy Weyl particles of the same helicity and that a single massive Dirac electron can in principle move luminally at all times. This is however not true for the many body situation required by quantum field theory and we conclude that a more natural theory arises from attributing beable status to the positions of massless Dirac particles instead of to Weyl particles.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_US
dc.format.extent1736150 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglishen_US
dc.language.isoen_US
dc.publisherInstitute of Physics Publishing Ltd.en_US
dc.publisher.placeUnited Kingdomen_US
dc.relation.ispartofstudentpublicationNen_US
dc.relation.ispartofpagefrom345304 -1en_US
dc.relation.ispartofpageto345304 - 19en_US
dc.relation.ispartofissue34en_US
dc.relation.ispartofjournalJournal of Physics A: Mathematical and Theoreticalen_US
dc.relation.ispartofvolume44en_US
dc.rights.retentionYen_US
dc.subject.fieldofresearchField Theory and String Theoryen_US
dc.subject.fieldofresearchQuantum Physics not elsewhere classifieden_US
dc.subject.fieldofresearchcode020602en_US
dc.subject.fieldofresearchcode020699en_US
dc.titleThe zig-zag road to realityen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.facultyGriffith Sciences, School of Natural Sciencesen_US
gro.rights.copyrightCopyright 2011 Institute of Physics Publishing. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher.Please refer to the journal's website for access to the definitive, published version.en_US
gro.date.issued2011
gro.hasfulltextFull Text


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