Topological aspects of dual superconductors
Soon-Tae Hong, Antti J. Niemi
DOI 10.1103/PhysRevB.70.134511 · Physical Review B
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Abstract
We discuss topological aspects of two-gap superconductors with and without Josephson coupling between gaps. We address nontrivial topological aspects of the dual superconductors and its connections to the Meissner effect and flux quantization. The topological knotted string geometry is also discussed in terms of the Hopf invariant, curvature, and torsion of the strings associated with U(1)×U(1) gauge group.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| MgB2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| NbSe2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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