Abstract
We construct a bound state of three 1/3-quantized Josephson coupled vortices in three-component superconductors with intrinsic Josephson couplings, which may be relevant with regard to iron-based superconductors. We find a Yshaped junction of three domain walls connecting the three vortices, resembling the baryonic bound state of three quarks in QCD. The appearance of the Y-junction (but not a δ-junction) implies that in both cases of superconductors and QCD, the bound state is described by a genuine three-body interaction (but not by the sum of two-body interactions). We also discuss a confinement/deconfinement phase transition.
Original language | English |
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Article number | 084711 |
Journal | Journal of the Physical Society of Japan |
Volume | 81 |
Issue number | 8 |
DOIs | |
Publication status | Published - 2012 Aug |
Keywords
- Baryon
- Confinement
- Fractional flux quanta
- Ginzburg-Landau free energy
- Interband phase difference soliton
- Meson
- Multi-band superconductor
- QCD
- Vortices
ASJC Scopus subject areas
- Physics and Astronomy(all)