Electron and electron-hole excitations in a driven Fermi sea

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VANEVIĆ, Mihajlo, Yuli V. NAZAROV, Wolfgang BELZIG, 2017. Electron and electron-hole excitations in a driven Fermi sea. In: Physica status solidi : pss / B: Basic solid state physics. 254(3), 1600551. ISSN 0370-1972. eISSN 1521-3951

@article{Vanevic2017-03Elect-38796, title={Electron and electron-hole excitations in a driven Fermi sea}, year={2017}, doi={10.1002/pssb.201600551}, number={3}, volume={254}, issn={0370-1972}, journal={Physica status solidi : pss / B: Basic solid state physics}, author={Vanević, Mihajlo and Nazarov, Yuli V. and Belzig, Wolfgang}, note={Article Number: 1600551} }

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/38796"> <dc:language>eng</dc:language> <dc:contributor>Vanević, Mihajlo</dc:contributor> <dcterms:title>Electron and electron-hole excitations in a driven Fermi sea</dcterms:title> <dc:creator>Belzig, Wolfgang</dc:creator> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2017-05-09T08:37:01Z</dcterms:available> <dc:creator>Vanević, Mihajlo</dc:creator> <dc:contributor>Nazarov, Yuli V.</dc:contributor> <dc:contributor>Belzig, Wolfgang</dc:contributor> <bibo:uri rdf:resource="https://kops.uni-konstanz.de/handle/123456789/38796"/> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2017-05-09T08:37:01Z</dc:date> <dcterms:issued>2017-03</dcterms:issued> <dc:creator>Nazarov, Yuli V.</dc:creator> <dcterms:abstract xml:lang="eng">We study the response of a degenerate Fermi sea to a time-dependent perturbation. We find that elementary excitations in the Fermi sea are electrons and electron–hole quasiparticle pairs whose number and probability of creation depend on amplitude and shape of the drive. The excitations can be probed in a driven quantum contact at low temperature. While electronic excitations are associated to the dc voltage offset and determine the average current, the electron–hole pairs are created by the ac voltage component and give rise to the excess current noise power in a junction. We also obtain the many-body state created by the drive. The constituent quasiparticle states can be probed by a Hong–Ou–Mandel type of correlation experiment where electrons emitted from the terminals with a relative time delay collide at the contact. The current noise power in the junction is directly related to the wave packet overlap at the contact. This is confirmed in recent experiments, demonstrating an unprecedented degree of control of elementary excitations in a coherent mesoscopic junction.</dcterms:abstract> </rdf:Description> </rdf:RDF>

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