Transition in vortex skyrmion structures in superfluid He 3 -A driven by an analog of the zero-charge effect

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorRantanen, R.en_US
dc.contributor.authorEltsov, V. B.en_US
dc.contributor.departmentDepartment of Applied Physicsen
dc.contributor.groupauthorTopological Quantum Fluidsen
dc.contributor.organizationDepartment of Applied Physicsen_US
dc.date.accessioned2023-04-19T06:06:13Z
dc.date.available2023-04-19T06:06:13Z
dc.date.issued2023-03en_US
dc.descriptionFunding Information: We thank G. Volovik, E. Thuneberg, and J. Nissinen for stimulating discussions. This work has been supported by the European Research Council (ERC) under the European Union's Horizon 2020 Research and Innovation Program (Grant Agreement No. 694248) and by the Academy of Finland (Grant No. 332964). We acknowledge the computational resources provided by the Aalto Science-IT project. | openaire: EC/H2020/694248/EU//TOPVAC
dc.description.abstractIn quantum electrodynamics, the zero-charge effect originates from the logarithmic dependence of the coupling constant in the action of the electromagnetic field on the ratio of the ultraviolet and infrared energy cutoffs. An analog of this effect in chiral Weyl superfluid He3-A is the logarithmic divergence of the bending energy of the orbital anisotropy axis at low temperatures, where temperature plays the role of the infrared cutoff, and the vector of the orbital anisotropy plays the role of the vector potential of the synthetic electromagnetic field for Weyl fermions. We calculate numerically the spatial distribution of the order parameter in rotating He3-A as a function of temperature. At temperatures close to the superfluid transition, we observe formation of vortex skyrmions known as the double-quantum vortex and the vortex sheet. These structures include alternating circular and hyperbolic merons as a bound pair or a chain, respectively. As temperature lowers towards absolute zero, we find a continuous transition in the vortex structures towards a state where the vorticity is distributed in thin tubes around the circular merons. For the vortex sheet, we present a phase diagram of the transition in the temperature-angular velocity plane and calculations of the nuclear magnetic resonance response.en
dc.description.versionPeer revieweden
dc.format.extent13
dc.format.extent1-13
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationRantanen, R & Eltsov, V B 2023, ' Transition in vortex skyrmion structures in superfluid He 3 -A driven by an analog of the zero-charge effect ', Physical Review B, vol. 107, no. 10, 104505, pp. 1-13 . https://doi.org/10.1103/PhysRevB.107.104505en
dc.identifier.doi10.1103/PhysRevB.107.104505en_US
dc.identifier.issn2469-9950
dc.identifier.issn2469-9969
dc.identifier.otherPURE UUID: 853dd637-349b-489c-8620-b0f22cb50345en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/853dd637-349b-489c-8620-b0f22cb50345en_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85150871746&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/106056914/Transition_in_vortex_skyrmion_structures_in_superfluid_3He_A_driven_by_an_analog_of_the_zero_charge_effect.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/120466
dc.identifier.urnURN:NBN:fi:aalto-202304192782
dc.language.isoenen
dc.publisherAmerican Physical Society
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/694248/EU//TOPVACen_US
dc.relation.ispartofseriesPhysical Review Ben
dc.relation.ispartofseriesVolume 107, issue 10en
dc.rightsopenAccessen
dc.titleTransition in vortex skyrmion structures in superfluid He 3 -A driven by an analog of the zero-charge effecten
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion

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