@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#> .

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    dct:description """
              This work is devoted to the study of polariton quantum fluids in semiconductor microcavities and in particular to the generation of solitons, half-solitons and vortex lattices in these systems. We develop an experimental setup allowing for the generation and the observation of dark solitons in a polariton fluid. We observe characteristic density and phase profiles, and study the stability of solitons. We show experimentally that using a linearly polarised pump, half-solitons are formed due to the effective magnetic field arising in presence of the two spin populations. After the characterization of the half-solitons in density and phase, we perform a complete tomography of the emission to extract the information stored in the pseudospin. These studies allow us to highlight a formal analogy between half-solitons and magnetic monopoles. Then we investigate vortex trapping techniques. We make use of metallic masks to create potential wells trapping hydrodynamically generated vortex in the wake of a defect. At low polariton density we used the masks to realise vortex and antivortex lattices with adjustable shape and size. The study of the polariton-polariton interaction at high density leads us to use an experimental setup with several pumps allowing for the observation of strong modifications and washing-out of the lattices.
            """ ;
    dct:identifier "tel-00911207" ;
    dct:issued "2026-05-08T01:07:47.080613"^^xsd:dateTime ;
    dct:language "fr" ;
    dct:modified "2026-05-08T01:07:47.080619"^^xsd:dateTime ;
    dct:publisher <https://rec.harvest-normandie.data4citizen.com/organization/cce9db95-46d9-4dc2-84b6-764215d0a002> ;
    dct:title "Solitons, half-solitons and vortex lattices in a polariton fluid" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "CCSD" ] ;
    dcat:distribution <https://rec.harvest-normandie.data4citizen.com/dataset/oai-hal-tel-00911207v1/resource/786e202a-6d04-4f8e-b5aa-cb8db47c8070> ;
    dcat:keyword "condensat-hors-equilibre",
        "demi-soliton",
        "exciton",
        "half-soliton",
        "infoeu-reposemanticsdoctoralthesis",
        "microcavite-semi-conductrice",
        "out-of-equilibrium-condensate",
        "physcondgasphysics-physicscondensed-matter-cond-matquantum-gases-cond-matquant-gas",
        "polariton",
        "reseau-de-vortex",
        "semiconductor-microcavity",
        "soliton",
        "theses",
        "vortex",
        "vortex-lattice" ;
    dcat:landingPage <https://theses.hal.science/tel-00911207> .

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    dct:issued "2026-05-08T01:07:47.085888"^^xsd:dateTime ;
    dct:modified "2026-05-08T01:07:46.991316"^^xsd:dateTime ;
    dct:title "Solitons, half-solitons and vortex lattices in a polariton fluid" ;
    dcat:accessURL <https://theses.hal.science/tel-00911207> .

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