Low Noise Current Amplifier Based on Mesoscopic Josephson Junction

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorDelahaye, Julien
dc.contributor.authorHassel, J.
dc.contributor.authorLindell, Rene
dc.contributor.authorSillanpää, Mika
dc.contributor.authorPaalanen, Mikko
dc.contributor.authorSeppä, Heikki
dc.contributor.authorHakonen, Pertti J.
dc.contributor.departmentTeknillisen fysiikan laitosfi
dc.contributor.departmentDepartment of Applied Physicsen
dc.contributor.schoolPerustieteiden korkeakoulufi
dc.contributor.schoolSchool of Scienceen
dc.date.accessioned2015-11-05T10:01:47Z
dc.date.available2015-11-05T10:01:47Z
dc.date.issued2003
dc.description.abstractWe utilize the band structure of a mesoscopic Josephson junction to construct low noise amplifiers. By taking advantage of the quantum dynamics of a Josephson junction, i.e. the interplay of interlevel transitions and the Coulomb blockade of Cooper pairs, we create transistor-like devices, Bloch oscillating transistors, with considerable current gain and high input impedance. In these transistors, correlated supercurrent of Cooper pairs is controlled by a small base current made of single electrons. Our devices reach current and power gains on the order of 30 and 5, respectively. The noise temperature is estimated to be around 1 Kelvin, but it is realistic to achieve TN < 0.1 Kelvin. These devices provide quantum-electronic building blocks that will be useful in low-noise, intermediate-impedance-level circuit applications at low temperatures.en
dc.description.versionNon Peer revieweden
dc.format.extent1-13
dc.format.mimetypeapplication/pdfen
dc.identifier.citationDelahaye, Julien & Hassel, J. & Lindell, Rene & Sillanpää, Mika & Paalanen, Mikko & Seppä, Heikki & Hakonen, Pertti J. 2003. Low Noise Current Amplifier Based on Mesoscopic Josephson Junction. Science. Volume 299, Issue 5609. 1-13. DOI: 10.1126/science.299.5609.1045en
dc.identifier.doi10.1126/science.299.5609.1045
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/18488
dc.identifier.urnURN:NBN:fi:aalto-201511044823
dc.language.isoenen
dc.publisherAmerican Association for the Advancement of Science (AAAS)en
dc.relation.ispartofseriesScienceen
dc.relation.ispartofseriesVolume 299, Issue 5609
dc.rights© 2003 American Association for the Advancement of Science (AAAS). This is the preprint version of the article: Delahaye, Julien & Hassel, J. & Lindell, Rene & Sillanpää, Mika & Paalanen, Mikko & Seppä, Heikki & Hakonen, Pertti J. 2003. Low Noise Current Amplifier Based on Mesoscopic Josephson Junction. Science. Volume 299, Issue 5609. 1-13. DOI: 10.1126/science.299.5609.1045.en
dc.rights.holderAmerican Association for the Advancement of Science (AAAS)
dc.subject.keywordJosephson junctionsen
dc.subject.keywordlow-noise amplifiersen
dc.subject.keywordband structuresen
dc.subject.otherPhysicsen
dc.titleLow Noise Current Amplifier Based on Mesoscopic Josephson Junctionen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.dcmitypetexten
dc.type.versionPre-printen
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