@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://rec.harvest-normandie.data4citizen.com/dataset/oai-hal-tel-00828608v1> a dcat:Dataset ;
    dct:description """
              A major issue of quantum electronics is to achieve interference experiments with a small controlled number of electrons. This requires the implementation of a yet never done reliable source that can inject an arbitrary number of indistinguishable electrons in a mesoscopic conductor. Here we consider an electron source based on short time voltage pulses, that delivers q quanta of charge per pulse. For most of the voltage pulses, this charge is accompagnied by a statistical number N+ of quasi-particles (holes and electrons), the total charge of which being neutral. However, for Lorentzian-shaped voltage pulses, N+ remarkably vanishes. This leads to a minimal excitation n-electron source, with a reliable number of emitted quasi-particles. In this thesis we present a first attempt to experimentally implement this n-electron source. Sub-nanosecond pulses are applied on a quantum point contact (QPC) realized in a clean two-dimensionnal electron gas of GaAs/AlGaAs heterostructure. When the single channel of the QPC is not perfectly transmitted, shot-noise occurs and reveals the excess number N+ of quasi-particles emitted by the pulses. Thus the property of the minimal excitation number of the integer Lorentzian pulses can be tested. Moreover, shot-noise gives access to the spectroscopy of the absorption and emission processes of photons that give rise to the excited quasi-particles. In our experiments, the sine, square and Lorentzian shape pulses are compared. The distinct character of the quasi-particles excitations of Lorentzian pulses is demonstrated and results are in quantitative agreement with the theoretical predictions at finite temperature.
            """ ;
    dct:identifier "NNT: 2012PA066387" ;
    dct:issued "2026-05-10T22:28:31.261558"^^xsd:dateTime ;
    dct:language "fr" ;
    dct:modified "2026-05-10T22:28:31.261563"^^xsd:dateTime ;
    dct:publisher <https://rec.harvest-normandie.data4citizen.com/organization/cce9db95-46d9-4dc2-84b6-764215d0a002> ;
    dct:title "Towards a n-electron source based on Lorentzian voltage pulses" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "CCSD" ] ;
    dcat:distribution <https://rec.harvest-normandie.data4citizen.com/dataset/oai-hal-tel-00828608v1/resource/259b52b3-90e9-4979-a5ca-3106c646ec39> ;
    dcat:keyword "bruit-de-grenaille",
        "contact-ponctuel-quantique",
        "infoeu-reposemanticsdoctoralthesis",
        "physique-mesoscopique",
        "physqphyphysics-physicsquantum-physics-quant-ph",
        "pulses-lorentziens",
        "quasi-particules",
        "source-a-n-electrons",
        "theses" ;
    dcat:landingPage <https://theses.hal.science/tel-00828608> .

<https://rec.harvest-normandie.data4citizen.com/dataset/oai-hal-tel-00828608v1/resource/259b52b3-90e9-4979-a5ca-3106c646ec39> a dcat:Distribution ;
    dct:format "HTML" ;
    dct:issued "2026-05-10T22:28:31.277524"^^xsd:dateTime ;
    dct:modified "2026-05-10T22:28:31.249888"^^xsd:dateTime ;
    dct:title "Towards a n-electron source based on Lorentzian voltage pulses" ;
    dcat:accessURL <https://theses.hal.science/tel-00828608> .

<https://rec.harvest-normandie.data4citizen.com/organization/cce9db95-46d9-4dc2-84b6-764215d0a002> a foaf:Agent ;
    foaf:name "test_moissonnage_selune" .

<https://theses.hal.science/tel-00828608> a foaf:Document .