Propagation of self-localized Q-ball solitons in the 3He universe

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Autti, S. Heikkinen, P. J. Volovik, G. E. Zavjalov, V. V. Eltsov, V. B. 2018-05-22T14:54:05Z 2018-05-22T14:54:05Z 2018-01-22
dc.identifier.citation Autti , S , Heikkinen , P J , Volovik , G E , Zavjalov , V V & Eltsov , V B 2018 , ' Propagation of self-localized Q -ball solitons in the 3He universe ' Physical Review B , vol 97 , no. 1 , 014518 , pp. 1-9 . DOI: 10.1103/PhysRevB.97.014518 en
dc.identifier.issn 2469-9950
dc.identifier.issn 1550-235X
dc.identifier.other PURE UUID: fc339096-e430-4f06-baab-1db7d238b7ec
dc.identifier.other PURE ITEMURL:
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dc.description | openaire: EC/H2020/694248/EU//TOPVAC
dc.description.abstract In relativistic quantum field theories, compact objects of interacting bosons can become stable owing to conservation of an additive quantum number Q. Discovering such Q balls propagating in the universe would confirm supersymmetric extensions of the standard model and may shed light on the mysteries of dark matter, but no unambiguous experimental evidence exists. We have created long-lived Q-ball solitons in superfluid He3, where the role of the Q ball is played by a Bose-Einstein condensate of magnon quasiparticles. The principal qualitative attribute of a Q ball is observed experimentally: its propagation in space together with the self-created potential trap. Additionally, we show that this system allows for a quantitatively accurate representation of the Q-ball Hamiltonian. Our Q ball belongs to the class of the Friedberg-Lee-Sirlin Q balls with an additional neutral field ζ, which is provided by the orbital part of the Nambu-Goldstone mode. Multiple Q balls can be created in the experiment, and we have observed collisions between them. This set of features makes the magnon condensates in superfluid 3He a versatile platform for studies of Q-ball dynamics and interactions in three spatial dimensions. en
dc.format.extent 1-9
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation info:eu-repo/grantAgreement/EC/H2020/694248/EU//TOPVAC
dc.relation.ispartofseries Physical Review B en
dc.relation.ispartofseries Volume 97, issue 1 en
dc.rights openAccess en
dc.subject.other Electronic, Optical and Magnetic Materials en
dc.subject.other Condensed Matter Physics en
dc.subject.other 114 Physical sciences en
dc.title Propagation of self-localized Q-ball solitons in the 3He universe en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Applied Physics
dc.contributor.department ROTA – Topological superfluids
dc.subject.keyword Electronic, Optical and Magnetic Materials
dc.subject.keyword Condensed Matter Physics
dc.subject.keyword 114 Physical sciences
dc.identifier.urn URN:NBN:fi:aalto-201805222730
dc.identifier.doi 10.1103/PhysRevB.97.014518
dc.type.version publishedVersion

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