Decay of an isolated monopole into a Dirac monopole configuration

K. Tiurev, E. Ruokokoski, H. Mäkelä, D. S. Hall, M. Möttönen

Research output: Contribution to journalArticleScientificpeer-review

9 Citations (Scopus)
102 Downloads (Pure)


We study numerically the detailed structure and decay dynamics of isolated monopoles in conditions similar to those of their recent experimental discovery. We find that the core of a monopole in the polar phase of a spin-1 Bose-Einstein condensate contains a small half-quantum vortex ring. Well after the creation of the monopole, we observe a dynamical quantum phase transition that destroys the polar phase. Strikingly, the resulting ferromagnetic order parameter exhibits a Dirac monopole in its synthetic magnetic field. We observe quantitatively matching decay dynamics for both ferromagnetic and antiferromagnetic spin-spin interactions.

Original languageEnglish
Article number033638
Pages (from-to)1-6
JournalPhysical Review A
Issue number3
Publication statusPublished - 21 Mar 2016
MoE publication typeA1 Journal article-refereed


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