Thermal budget of superconducting digital circuits at subkelvin temperatures

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Savin, A. M. Pekola, Jukka P. Averin, D. V. Semenov, V. K. 2015-05-27T09:01:26Z 2015-05-27T09:01:26Z 2006
dc.identifier.citation Savin, A. M. & Pekola, Jukka & Averin, D. V. & Semenov, V. K. 2006. Thermal budget of superconducting digital circuits at subkelvin temperatures. Journal of Applied Physics. Volume 99, Issue 8. 084501/1-9. ISSN 0021-8979 (printed). DOI: 10.1063/1.2187276. en
dc.identifier.issn 0021-8979 (printed)
dc.description.abstract Superconducting single-flux-quantum (SFQ) circuits have so far been developed and optimized for operation at or above helium temperatures. The SFQ approach, however, should also provide potentially viable and scalable control and readout circuits for Josephson-junction qubits and other applications with much lower, millikelvin, operating temperatures. This paper analyzes the overheating problem which becomes important in this temperature range. We suggest a thermal model of the SFQ circuits at subkelvin temperatures and present experimental results on overheating of electrons and silicon substrate which support this model. The model establishes quantitative limitations on the dissipated power both for “local” electron overheating in resistors and “global” overheating due to ballistic phonon propagation along the substrate. Possible changes in the thermal design of SFQ circuits in view of the overheating problem are also discussed. en
dc.format.extent 084501/1-9
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher AIP Publishing en
dc.relation.ispartofseries Journal of Applied Physics en
dc.relation.ispartofseries Volume 99, Issue 8
dc.rights © 2006 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Journal of Applied Physics, Volume 99, Issue 8 and may be found at en
dc.subject.other Physics en
dc.title Thermal budget of superconducting digital circuits at subkelvin temperatures en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.rights.holder American Institute of Physics Perustieteiden korkeakoulu fi School of Science en
dc.contributor.department Department of Applied Physics en
dc.contributor.department Teknillisen fysiikan laitos fi
dc.subject.keyword subkelvin temperature en
dc.subject.keyword single-flux quantum (SFQ) en
dc.subject.keyword superconductors en
dc.subject.keyword resistors en
dc.subject.keyword qubits en
dc.subject.keyword Josephson junctions en
dc.subject.keyword phonons en
dc.subject.keyword comparators en
dc.identifier.urn URN:NBN:fi:aalto-201505272900
dc.type.dcmitype text en
dc.identifier.doi 10.1063/1.2187276
dc.type.version Final published version en

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