NDLI: Design for effective thermalization of junctions for quantum coherence

Content Provider	IEEE Xplore Digital Library
Author	Ramos, R.C. Gubrud, M.A. Berkley, A.J. Anderson, J.R. Lobb, C.J. Wellstood, F.C.
Copyright Year	2002
Abstract	We present a design for effectively isolating low-dissipation superconducting tunnel junctions without causing excessive heating. In order to obtain a long decoherence time in macroscopic quantum coherence experiments, it will be essential to make high impedance connections to the junction. In our design, the connections are made by thin-film resistors. To prevent excessive heating, we divide the resistors into many short sections, each of which is heat-sunk to small metal banks. We rely on electron diffusion to carry the heat out of the resistors and into the banks. We calculate the resulting temperature profile in the resistors and discuss the effect on the decoherence time of the junction.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	998
Ending Page	1001
Page Count	4
File Size	432906
File Format	PDF
ISSN	10518223
Volume Number	11
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-03-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Quantum computing Heating Josephson junctions Resistors Energy states Impedance Temperature Working environment noise Magnetic noise Superconducting device noise
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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