Quantum description of a Josephson junction coupled to a charge-density wave
J. Yi, Sung-Ik Lee
DOI 10.1103/PhysRevB.62.9892 · Physical Review B
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Abstract
A quantum theory for a superconductor-charge-density wave-superconductor junction is proposed, the equivalent circuit of which is a Josephson junction coupled to a charge density wave in parallel. The corresponding Hamiltonian is found to resemble that of a two-dimensional electron on a periodic potential, where the coupling introduces a term like a vector potential. We also examine ground-state property coupled to an external driving, and predict the voltage plateaus called quantum Shapiro steps.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| NbSe3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| TaS3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| TaSe3 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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