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Microwave irradiation and quasiparticles in a superconducting double dot
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dc.contributor.author | Lambert, N. J. | |
dc.contributor.author | Esmail, A. A. | |
dc.contributor.author | Pollock, F. A. | |
dc.contributor.author | Edwards, M. | |
dc.contributor.author | Lovett, B. W. | |
dc.contributor.author | Ferguson, A. J. | |
dc.date.accessioned | 2017-07-14T08:30:14Z | |
dc.date.available | 2017-07-14T08:30:14Z | |
dc.date.issued | 2017-06-15 | |
dc.identifier | 250512168 | |
dc.identifier | 09c74af1-13a7-4c36-ba7d-6dd8b419edb5 | |
dc.identifier | 85024363371 | |
dc.identifier | 000402973100003 | |
dc.identifier.citation | Lambert , N J , Esmail , A A , Pollock , F A , Edwards , M , Lovett , B W & Ferguson , A J 2017 , ' Microwave irradiation and quasiparticles in a superconducting double dot ' , Physical Review. B, Condensed matter and materials physics , vol. 95 , no. 23 , 235413 . https://doi.org/10.1103/PhysRevB.95.235413 | en |
dc.identifier.issn | 1098-0121 | |
dc.identifier.other | Bibtex: urn:ef6dda7527b5e289b7fa5e636877248f | |
dc.identifier.other | ORCID: /0000-0001-5142-9585/work/47136583 | |
dc.identifier.uri | https://hdl.handle.net/10023/11202 | |
dc.description | Funding: UK EPSRC EP/K025562. | en |
dc.description.abstract | We study the interaction of the charge states of a superconducting double dot, comprising two superconducting islands coupled by a Josephson junction, with microwaves between 2 and 55 GHz. We observe resonant transitions between even-parity charge states at relatively low frequencies and breaking of Cooper pairs under higher-frequency irradiation, allowing our device to act as a click detector for microwave photons. By applying a magnetic field and tuning the pair-breaking energy, we perform spectroscopy on the environment in our cryostat and determine the temperature of a nonequilibrium photon bath. Finally, we exploit the band structure of our device to break Cooper pairs dependent on the symmetry of the initial Cooper pair state. | |
dc.format.extent | 10 | |
dc.format.extent | 2284147 | |
dc.language.iso | eng | |
dc.relation.ispartof | Physical Review. B, Condensed matter and materials physics | en |
dc.subject | QC Physics | en |
dc.subject | TK Electrical engineering. Electronics Nuclear engineering | en |
dc.subject | NDAS | en |
dc.subject.lcc | QC | en |
dc.subject.lcc | TK | en |
dc.title | Microwave irradiation and quasiparticles in a superconducting double dot | en |
dc.type | Journal article | en |
dc.contributor.sponsor | EPSRC | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.contributor.institution | University of St Andrews. Condensed Matter Physics | en |
dc.identifier.doi | https://doi.org/10.1103/PhysRevB.95.235413 | |
dc.description.status | Peer reviewed | en |
dc.identifier.grantnumber | en |
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