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An on-demand source of non-local energy-entangled quantum states using Levitons
- Source :
- Appl. Phys. Lett. 122, 202601 (2023)
- Publication Year :
- 2023
-
Abstract
- 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.
Details
- Database :
- arXiv
- Journal :
- Appl. Phys. Lett. 122, 202601 (2023)
- Publication Type :
- Report
- Accession number :
- edsarx.2302.10744
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1063/5.0148041