On-Demand and Tunable Andreev Conversion of Single-Electron Charge Pulses
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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en
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8
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Physical Review Letters, Volume 135, issue 24, pp. 1-8
Abstract
Electron quantum optics explores coherent single-electron charge pulse propagation in electronic nanoscale circuits akin to tabletop photon setups. While past experiments focused on normal-state conductors, incorporating superconductors holds promise for exploiting the electron-hole degree of freedom in quantum sensing applications and quantum information processing. Here, we propose and analyze an on-demand and tunable mechanism for converting single-electron pulses into holes through Andreev processes on a superconductor. We develop a Floquet-Nambu scattering formalism to demonstrate the dynamic conversion of charge pulses and the controllable generation of coherent electron-hole superpositions through interferometric magnetic flux control based on the chiral edge states of a quantum Hall sample. Our discussion covers optimal conditions in realistic scenarios, affirming the feasibility of our proposal with current technology.Description
Publisher Copyright: © 2025 American Physical Society.
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Burset, P, Roussel, B, Moskalets, M & Flindt, C 2025, 'On-Demand and Tunable Andreev Conversion of Single-Electron Charge Pulses', Physical Review Letters, vol. 135, no. 24, 246303, pp. 1-8. https://doi.org/10.1103/lfsm-z1sl