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Article Dans Une Revue Appl.Phys.Lett. Année : 2023

An on-demand source of non-local energy-entangled quantum states using Levitons

Résumé

We propose a device where Electronic Quantum Optics (EQO) is combined with a BCS superconductor -- a reservoir of Cooper pairs. With spin polarized wave guides, this version of the Cooper pair beam splitter is driven by an AC drive, and observables such as period-averaged noise are computed using a Keldysh-Nambu-Floquet formalism. When the (low frequency) voltage applied to the superconductor consists of a train of periodic Lorentzian pulses and the Andreev regime is specified (large gap limit), this allows to propose an on-demand source of non-local energy-entangled states (which we characterise with perturbation theory) operating in the AC regime. We study realistic experimental parameters for our device in order to examine its feasibility.

Dates et versions

hal-04017306 , version 1 (07-03-2023)

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Citer

Bruno Bertin-Johannet, Laurent Raymond, Flavio Ronetti, J. Rech, Thibaut Jonckheere, et al.. An on-demand source of non-local energy-entangled quantum states using Levitons. Appl.Phys.Lett., 2023, 122 (20), pp.2891331. ⟨10.1063/5.0148041⟩. ⟨hal-04017306⟩
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