Fusion rules and vortices in px+ipy superconductors
Michael Stone, Suk-Bum Chung
DOI 10.1103/PhysRevB.73.014505 · Physical Review B
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Abstract
The “half-quantum” vortices (σ) and quasiparticles (ψ) in a two-dimensional px+ipy superconductor obey the Ising-like fusion rules ψ×ψ=1, σ×ψ=σ, and σ×σ=1+ψ. We explain how the physical fusion of vortex-antivortex pairs allows us to use these rules to read out the information encoded in the topologically protected space of degenerate ground states. We comment on the potential applicability of this fact to quantum computation.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Sr2RuO4 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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