Fermionic Quartet and Vestigial Gravity

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorVolovik, G. E.en_US
dc.contributor.departmentDepartment of Applied Physicsen
dc.contributor.groupauthorTopological Quantum Fluidsen
dc.date.accessioned2024-04-11T16:21:52Z
dc.date.available2024-04-11T16:21:52Z
dc.date.issued2024-02en_US
dc.descriptionPublisher Copyright: © The Author(s) 2024. ISSN 0021-3640, JETP Letters, 2024. The Author(s), 2024. This article is an open access publication.
dc.description.abstractWe discuss the two-step transitions in superconductors, where the intermediate state between the Cooper pair state and the normal metal is the 4-fermion condensate, which is called the intertwined vestigial order. We discuss different types of the vestigial order, which are possible in the spin-triplet superfluid 3He, and the topological objects in the vestigial phases. Since in 3He the order parameter Aαi represents the analog of gravitational tetrads, we suggest that the vestigial states are possible in quantum gravity. As in superconductors, the fermionic vacuum can experience two consequent phase transitions. At first transition the metric appears as the bilinear combination of tetrads gμν = ηab〈〉, while the tetrad order parameter is still absent, = 〈〉 = 0. This corresponds to the bosonic Einstein general relativity, which emerges in the fermionic vacuum. The nonzero tetrads = 〈〉 ≠ 0 appear at the second transition, where a kind of the Einstein–Cartan–Sciama–Kibble tetrad gravity is formed. This suggests that on the levels of particles, gravity acts with different strength on fermions and bosons.en
dc.description.versionPeer revieweden
dc.format.extent5
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationVolovik, G E 2024, ' Fermionic Quartet and Vestigial Gravity ', JETP Letters, vol. 119, no. 4, pp. 330-334 . https://doi.org/10.1134/S002136402460006Xen
dc.identifier.doi10.1134/S002136402460006Xen_US
dc.identifier.issn0021-3640
dc.identifier.issn1090-6487
dc.identifier.otherPURE UUID: e8f54afb-11c1-4d30-846a-0ce43b4087dfen_US
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dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/143526349/Fermionic_Quartet_and_Vestigial_Gravity.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/127471
dc.identifier.urnURN:NBN:fi:aalto-202404113094
dc.language.isoenen
dc.publisherMAIK Nauka/Interperiodica
dc.relation.ispartofseriesJETP Letters
dc.relation.ispartofseriesVolume 119, issue 4, pp. 330-334
dc.rightsopenAccessen
dc.titleFermionic Quartet and Vestigial Gravityen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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