Floquet engineering bulk odd-frequency superconducting pairs
Jorge Cayao, Christopher Triola, Annica M. Black-Schaffer
DOI 10.1103/PhysRevB.103.104505 · Physical Review B
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Abstract
We introduce the concept of Floquet odd-frequency superconducting pairs and establish their emergence in time-periodic conventional superconductors. We show that these exotic Cooper pairs are possible because the Floquet modes in time-periodic systems provide an additional index (a Floquet index) that broadens the classification of superconducting pair symmetries, with no analog in the static regime. Our results thus put forward a different route for odd-frequency superconducting pairs, and pave the way for Floquet engineered dynamical superconducting states.
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