Time-Domain Spectroscopy of Mesoscopic Conductors Using Voltage Pulses

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Time-Domain Spectroscopy of Mesoscopic Conductors Using Voltage Pulses. / Burset, Pablo; Kotilahti, Janne; Moskalets, Michael; Flindt, Christian.

In: Advanced Quantum Technologies, 27.02.2019, p. 1-5.

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@article{7a27fa9c895a433db172c701eaa16615,
title = "Time-Domain Spectroscopy of Mesoscopic Conductors Using Voltage Pulses",
abstract = "The development of single-electron sources is paving the way for a novel type of experiment in which individual electrons are emitted into a quantum-coherent circuit. However, to facilitate further progress toward fully coherent on-chip experiments with electrons, a detailed understanding of the quantum circuits is needed. Here, it is proposed to perform time-domain spectroscopy of mesoscopic conductors by applying Lorentzian-shaped voltage pulses to an input contact. Specifically, it is shown how characteristic timescales of a quantum-coherent conductor can be extracted from the distribution of waiting times between charge pulses propagating through the circuit. To illustrate the idea, Floquet scattering theory is employed to evaluate the electron waiting times for an electronic Fabry–P{\'e}rot cavity and a Mach–Zehnder interferometer. The perspectives for an experimental realization of the proposal are discussed and possible avenues for further developments are identified.",
keywords = "dynamic scattering theory, interferometry, levitons",
author = "Pablo Burset and Janne Kotilahti and Michael Moskalets and Christian Flindt",
note = "| openaire: EC/H2020/743884/EU//DiracEntangler",
year = "2019",
month = "2",
day = "27",
doi = "10.1002/qute.201900014",
language = "English",
pages = "1--5",
journal = "Advanced Quantum Technologies",
issn = "2511-9044",
publisher = "Wiley",

}

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TY - JOUR

T1 - Time-Domain Spectroscopy of Mesoscopic Conductors Using Voltage Pulses

AU - Burset, Pablo

AU - Kotilahti, Janne

AU - Moskalets, Michael

AU - Flindt, Christian

N1 - | openaire: EC/H2020/743884/EU//DiracEntangler

PY - 2019/2/27

Y1 - 2019/2/27

N2 - The development of single-electron sources is paving the way for a novel type of experiment in which individual electrons are emitted into a quantum-coherent circuit. However, to facilitate further progress toward fully coherent on-chip experiments with electrons, a detailed understanding of the quantum circuits is needed. Here, it is proposed to perform time-domain spectroscopy of mesoscopic conductors by applying Lorentzian-shaped voltage pulses to an input contact. Specifically, it is shown how characteristic timescales of a quantum-coherent conductor can be extracted from the distribution of waiting times between charge pulses propagating through the circuit. To illustrate the idea, Floquet scattering theory is employed to evaluate the electron waiting times for an electronic Fabry–Pérot cavity and a Mach–Zehnder interferometer. The perspectives for an experimental realization of the proposal are discussed and possible avenues for further developments are identified.

AB - The development of single-electron sources is paving the way for a novel type of experiment in which individual electrons are emitted into a quantum-coherent circuit. However, to facilitate further progress toward fully coherent on-chip experiments with electrons, a detailed understanding of the quantum circuits is needed. Here, it is proposed to perform time-domain spectroscopy of mesoscopic conductors by applying Lorentzian-shaped voltage pulses to an input contact. Specifically, it is shown how characteristic timescales of a quantum-coherent conductor can be extracted from the distribution of waiting times between charge pulses propagating through the circuit. To illustrate the idea, Floquet scattering theory is employed to evaluate the electron waiting times for an electronic Fabry–Pérot cavity and a Mach–Zehnder interferometer. The perspectives for an experimental realization of the proposal are discussed and possible avenues for further developments are identified.

KW - dynamic scattering theory

KW - interferometry

KW - levitons

U2 - 10.1002/qute.201900014

DO - 10.1002/qute.201900014

M3 - Article

SP - 1

EP - 5

JO - Advanced Quantum Technologies

JF - Advanced Quantum Technologies

SN - 2511-9044

M1 - 1900014

ER -

ID: 32753245