Emergence of Non-Abelian Magnetic Monopoles in a Quantum Impurity Problem.

  title={Emergence of Non-Abelian Magnetic Monopoles in a Quantum Impurity Problem.},
  author={Enderalp Yakaboylu and Andreas Deuchert and Mikhail Lemeshko},
  journal={Physical review letters},
  volume={119 23},
Recently, it was shown that molecules rotating in superfluid helium can be described in terms of the angulon quasiparticles [Phys. Rev. Lett. 118, 095301 (2017)PRLTAO0031-900710.1103/PhysRevLett.118.095301]. Here, we demonstrate that in the experimentally realized regime the angulon can be seen as a point charge on a two-sphere interacting with a gauge field of a non-Abelian magnetic monopole. Unlike in several other settings, the gauge fields of the angulon problem emerge in the real… 

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Lemeshko, to be published (2017)

  • 2017

A and V


  • Chem., Int. Ed. Engl. 43, 2622
  • 2004

Physical Review Letters 63

  • 1989

Nature (London) 505

  • 657
  • 2014

Molecular impurities interacting with a many-particle environment: from ultracold gases to helium nanodroplets” in “Low Energy and Low Temperature Molecular Scattering

  • eds. O. Dulieu and A. Osterwalder, arXiv:1703.06753
  • 2017


  • Phys. B107, 365
  • 1976