On-demand population of Andreev levels by their ionization in the presence of Coulomb blockade
Year: 2024
Type: article
Abstract: A mechanism to deterministically prepare a nanowire Josephson junction in an odd parity state is proposed. The mechanism involves population of two Andreev levels by a resonant microwave drive breaking a Cooper pair, and a subsequent ionization of one of the levels by the same drive. Robust preparation of the odd state is allowed by a residual Coulomb repulsion in the junction. A similar resonant process can also be used to prepare the junction in the even state. Our theory explains a recent experiment [J. J. Wesdorp et al., Phys. Rev. Lett. 131, 117001 (2023)].
Institutions: Yale University, University of Konstanz
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: G1160836163, G1570376017, Topologische GraphenMultiterminalJosephsonKontakte, G241279073, G2559764746, G357145406, G4720003262, Dynamische supraleitende Zustände in Supraleiter/Magnet Hybridstrukturen, G5328161950, G5765906131, SFB 1432: Fluktuationen und Nichtlinearitäten in klassischer und Quantenmaterie jenseits des Gleichgewichts, G7452299184, G7463374569, Electron Transport in Low-Dimensional and Mesoscopic Topological Solids, G872144517, G8876996369
OpenAlex ID: W4404165055