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- W4301448981 abstract "The spectrum of 1-state and 2-states per line quantum buses is used to determine the effective $V_{ab}(N)$ electronic coupling between emitter and receiver states through the bus as a function of the number $N$ of parallel lines in the bus. When the calculation of $V_{ab}(N)$ is spectrally difficult, an Heisenberg-Rabi time dependent quantum exchange process can be triggered through the bus by preparing a specific initial non-stationanry state and identifying a target state to capture the effective oscillation frequency $Omega_{ab}(N)$ between those. For $Omega_{ab}(N)$ (for $V_{ab}(N)$), two different regimes are observed as a function of $N$: linear and $sqrt{N}$ more moderate increases. This state preparation was remplaced by electronically coupling the quantum bus to two semi-infinite electrodes. The native quantum transduction process at work in this tunnel junction is not faithfully following the $Omega_{ab}(N)$ variations with $N$. Due to normalisation to unity of the electronic transparency of the quantum bus and to the low pass filter character of the transduction, large $Omega_{ab}(N)$ cannot be followed by the tunnel junction. At low coupling and when $N$ is small enough not to compensate the small through line coupling, an $N^2$ power law is preserved for $Omega_{ab}(N)$. The limitations of the quantum transduction in a tunnel junction is pointing how the broadly used concept of electrical contact between a metallic nanopad and a molecular wire can be better described as a quantum transduction process." @default.
- W4301448981 created "2022-10-05" @default.
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- W4301448981 date "2016-03-10" @default.
- W4301448981 modified "2023-09-26" @default.
- W4301448981 title "Parallel Quantum Circuit in a Tunnel Junction" @default.
- W4301448981 doi "https://doi.org/10.48550/arxiv.1603.03233" @default.
- W4301448981 hasPublicationYear "2016" @default.
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