Floquet Proximity Effect
ORAL
Abstract
We introduce the concept of "Floquet proximity effect," in which the usual equilibrium proximity effect is modified by the presence of a strong periodic drive at the interface. We develop the general theory of Floquet proximity effect and obtain the Floquet mean field equations, which yield the frequency-dependent induced order parameter. To illustrate the effect, we consider a Dirac system such as the surface of a topological insulator in proximity to an s-wave superconductor. The Floquet proximity effect modifies and induces effective frequency-dependent pairing amplitudes in both systems. Thus, we provide an avenue to the theoretical and experimental study of dynamical superconducting pairing induced by Floquet proximity effect.
*This work is supported by NSF Grant Nos. DMR-1914451 and ECCS-1936406, the College of Arts and Sciences and the Vice Provost for Research at Indiana University, Bloomington through the Faculty Research Support Program. HAF acknowledges support from the US-Israel Binational Science Foundation (Grant Nos. 2016130 and 2018726) and the Research Corporation for Science Advancement through a Cottrell SEED award.
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Presenters
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Yantao Li
- Indiana University Bloomington
- Indiana Univ - Bloomington