Creation of a Dirac monopole-antimonopole pair in a spin-1 Bose-Einstein condensate

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Tiurev, Konstantin
dc.contributor.author Kuopanportti, Pekko
dc.contributor.author Möttönen, Mikko
dc.date.accessioned 2019-04-02T06:52:27Z
dc.date.available 2019-04-02T06:52:27Z
dc.date.issued 2019-02-19
dc.identifier.citation Tiurev , K , Kuopanportti , P & Möttönen , M 2019 , ' Creation of a Dirac monopole-antimonopole pair in a spin-1 Bose-Einstein condensate ' Physical Review A , vol. 99 , no. 2 , 023621 , pp. 1-7 . https://doi.org/10.1103/PhysRevA.99.023621 en
dc.identifier.issn 2469-9926
dc.identifier.issn 2469-9934
dc.identifier.other PURE UUID: 2923dac5-14f7-43a2-a8ea-c5b9821ebe4a
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/creation-of-a-dirac-monopoleantimonopole-pair-in-a-spin1-boseeinstein-condensate(2923dac5-14f7-43a2-a8ea-c5b9821ebe4a).html
dc.identifier.other PURE LINK: http://www.scopus.com/inward/record.url?scp=85062288807&partnerID=8YFLogxK
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/32503268/PhysRevA.99.023621.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/37274
dc.description | openaire: EC/H2020/681311/EU//QUESS
dc.description.abstract We theoretically demonstrate that a pair of Dirac monopoles with opposite synthetic charges can be created within a single spin-1 Bose-Einstein condensate by steering the spin degrees of freedom by external magnetic fields. Although the net synthetic magnetic charge of this configuration vanishes, both the monopole and the antimonopole are accompanied by vortex filaments carrying opposite angular momenta. Such a Dirac dipole can be realized experimentally by imprinting a spin texture with a nonlinear magnetic field generated by a pair of coils in a modified Helmholtz configuration. We also investigate the case where the initial state for the dipole-creation procedure is pierced by a quantized vortex line with a winding number κ. It is shown that if κ=-1, the resulting monopole and antimonopole lie along the core of a singly quantized vortex whose sign is reversed at the locations of the monopoles. For κ=-2, the monopole and antimonopole are connected by a vortex line segment carrying two quanta of angular momentum, and hence the dipole as a whole is an isolated configuration. In addition, we simulate the long-time evolution of the dipoles in the magnetic field used to create them. For κ=0, each of the semi-infinite doubly quantized vortices splits into two singly quantized vortices, as in the case of a single Dirac monopole. For κ=-1 and κ=-2, the initial vortices deform into a vortex with a kink and a vortex ring, respectively. en
dc.format.extent 7
dc.format.extent 1-7
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher American Physical Society
dc.relation info:eu-repo/grantAgreement/EC/H2020/681311/EU//QUESS
dc.relation.ispartofseries Physical Review A en
dc.relation.ispartofseries Volume 99, issue 2 en
dc.rights openAccess en
dc.subject.other Atomic and Molecular Physics, and Optics en
dc.subject.other 114 Physical sciences en
dc.title Creation of a Dirac monopole-antimonopole pair in a spin-1 Bose-Einstein condensate en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Centre of Excellence in Quantum Technology, QTF
dc.contributor.department Department of Applied Physics
dc.subject.keyword HIGHLY IONIZING PARTICLES
dc.subject.keyword MAGNETIC MONOPOLES
dc.subject.keyword SEARCH
dc.subject.keyword COLLISIONS
dc.subject.keyword FIELD
dc.subject.keyword Atomic and Molecular Physics, and Optics
dc.subject.keyword 114 Physical sciences
dc.identifier.urn URN:NBN:fi:aalto-201904022405
dc.identifier.doi 10.1103/PhysRevA.99.023621
dc.type.version publishedVersion


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