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Dispersive Thermometry with a Josephson Junction Coupled to a Resonator

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Saira, O. -P.
dc.contributor.author Zgirski, M.
dc.contributor.author Viisanen, K. L.
dc.contributor.author Golubev, D. S.
dc.contributor.author Pekola, J. P.
dc.date.accessioned 2016-11-08T12:10:32Z
dc.date.issued 2016-08-10
dc.identifier.citation Saira , O -P , Zgirski , M , Viisanen , K L , Golubev , D S & Pekola , J P 2016 , ' Dispersive Thermometry with a Josephson Junction Coupled to a Resonator ' , Physical Review Applied , vol. 6 , no. 2 , 024005 , pp. 1-8 . https://doi.org/10.1103/PhysRevApplied.6.024005 en
dc.identifier.issn 2331-7019
dc.identifier.other PURE UUID: 5bb4d906-f878-453a-b18b-c4bc201ddfbe
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/5bb4d906-f878-453a-b18b-c4bc201ddfbe
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/9025540/PhysRevApplied.6.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/23435
dc.description.abstract We embed a small Josephson junction in a microwave resonator that allows simultaneous dc biasing and dispersive readout. Thermal fluctuations drive the junction into phase diffusion and induce a temperature-dependent shift in the resonance frequency. By sensing the thermal noise of a remote resistor in this manner, we demonstrate primary thermometry in the range of 300 mK to below 100 mK, and high-bandwidth (7.5 MHz) operation with a noise-equivalent temperature of better than 10 mu K/root Hz. At a finite bias voltage close to a Fiske resonance, amplification of the microwave probe signal is observed. We develop an accurate theoretical model of our device based on the theory of dynamical Coulomb blockade. en
dc.format.extent 8
dc.format.extent 1-8
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries PHYSICAL REVIEW APPLIED en
dc.relation.ispartofseries Volume 6, issue 2 en
dc.rights openAccess en
dc.title Dispersive Thermometry with a Josephson Junction Coupled to a Resonator en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Applied Physics
dc.contributor.department Polish Academy of Sciences
dc.subject.keyword TUNNEL-JUNCTION
dc.subject.keyword QUANTUM
dc.subject.keyword REFRIGERATION
dc.subject.keyword DYNAMICS
dc.subject.keyword PAIR
dc.identifier.urn URN:NBN:fi:aalto-201611085523
dc.identifier.doi 10.1103/PhysRevApplied.6.024005
dc.type.version publishedVersion

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