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 |
|---|---|
| Article number | 084711 |
| Journal | Journal of the Physical Society of Japan |
| Volume | 81 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 2012 Aug 1 |
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)
Fingerprint Dive into the research topics of 'Baryonic bound state of vortices in multicomponent superconductors'. Together they form a unique fingerprint.
Cite this
Nitta, M., Eto, M., Fujimori, T., & Ohashi, K. (2012). Baryonic bound state of vortices in multicomponent superconductors. Journal of the Physical Society of Japan, 81(8), [084711]. https://doi.org/10.1143/JPSJ.81.084711