Supercurrent-induced phonon angular momentum
Takehito Yokoyama
TL;DR
This paper introduces a theoretical mechanism where supercurrents induce phonon angular momentum in certain superconductors, supported by analytical derivations and physical interpretation.
Contribution
It presents a novel theoretical mechanism for supercurrent-induced phonon angular momentum in mixed parity and s-wave superconductors with spin orbit coupling.
Findings
Analytical expressions for phonon angular momentum induced by supercurrent.
Physical interpretation of the supercurrent-phonon angular momentum effect.
Applicable to mixed parity and s-wave superconductors with spin orbit coupling.
Abstract
We propose a mechanism of supercurrent-induced phonon angular momentum in mixed parity superconductors and s-wave superconductors with spin orbit coupling. We derive analytical expressions of phonon angular momentum induced by the supercurrent by perturbative calculation. The physical interpretation of this effect is also discussed.
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