Metastable Superconducting Qubit
Name
Kerman-2010-Metastable Superconducting Qubit.pdf
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740.15 KB
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Checksum (MD5)
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Author(s)
Kerman, Andrew J.
Date Issued
January 2010
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Kerman, Andrew J. “Metastable Superconducting Qubit.” Physical Review Letters 104.2 (2010): 027002. © 2010 The American Physical Society.
Version
Final published version
Abstract
We propose a superconducting qubit design, based on a tunable rf SQUID and nanowire kinetic inductors, which has a dramatically reduced transverse electromagnetic coupling to its environment, so that its excited state should be metastable. If electromagnetic interactions are in fact responsible for the current excited-state decay rates of superconducting qubits, this design should result in a qubit lifetime orders of magnitude longer than currently possible. Furthermore, since accurate manipulation and readout of superconducting qubits is currently limited by spontaneous decay, much higher fidelities may be realizable with this design.
MIT Department
Lincoln Laboratory
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.104.027002
