dc.contributor.author | Jin, X. Y. | |
dc.contributor.author | Bylander, Jonas | |
dc.contributor.author | Yoshihara, F. | |
dc.contributor.author | Nakamura, Yasunobu | |
dc.contributor.author | Gustavsson, Simon | |
dc.contributor.author | Yan, Fei | |
dc.contributor.author | Orlando, Terry Philip | |
dc.contributor.author | Oliver, William D. | |
dc.date.accessioned | 2015-03-17T19:27:00Z | |
dc.date.available | 2015-03-17T19:27:00Z | |
dc.date.issued | 2015-03 | |
dc.date.submitted | 2014-12 | |
dc.identifier.issn | 2331-7019 | |
dc.identifier.uri | http://hdl.handle.net/1721.1/96056 | |
dc.description.abstract | Detuning a superconducting qubit from its rotating frame is one means to implement a Z-gate operation. In this work, we implement a Z gate by pulsing a current through the qubit’s readout dc SQUID. While the dc SQUID acts as a magnetic flux sensor for qubit readout, we in turn may use it as a flux actuator with tunable strength to impose a qubit frequency shift. Using this approach, we demonstrate Ramsey-type free-induction experiments with time constants as long as 280 ns and rotation frequencies as high as 1.4 GHz. We experimentally demonstrate an inferred Z-gate fidelity of approximately 90%, limited largely by the bandwidth of our system. In the absence of this limitation, we argue that the inferred fidelity may be improved to as high as 99%. | en_US |
dc.description.sponsorship | United States. Dept. of Defense. Assistant Secretary of Defense for Research & Engineering (Air Force Contract FA8721-05-C-0002) | en_US |
dc.description.sponsorship | United States. Army Research Office (Grant W911NF-14-1-0078) | en_US |
dc.description.sponsorship | National Science Foundation (U.S.) (Grant PHY-1415514) | en_US |
dc.publisher | American Physical Society | en_US |
dc.relation.isversionof | http://dx.doi.org/10.1103/PhysRevApplied.3.034004 | en_US |
dc.rights | 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. | en_US |
dc.source | American Physical Society | en_US |
dc.title | Z-Gate Operation on a Superconducting Flux Qubit via Its Readout SQUID | en_US |
dc.type | Article | en_US |
dc.identifier.citation | Jin, X. Y. et al. “Z-Gate Operation on a Superconducting Flux Qubit via Its Readout SQUID.” Physical Review Applied 3.3 (2015). © 2015 American Physical Society | en_US |
dc.contributor.department | Lincoln Laboratory | en_US |
dc.contributor.department | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science | en_US |
dc.contributor.department | Massachusetts Institute of Technology. Research Laboratory of Electronics | en_US |
dc.contributor.mitauthor | Gustavsson, Simon | en_US |
dc.contributor.mitauthor | Jin, X. Y. | en_US |
dc.contributor.mitauthor | Yan, Fei | en_US |
dc.contributor.mitauthor | Bylander, Jonas | en_US |
dc.contributor.mitauthor | Orlando, Terry Philip | en_US |
dc.contributor.mitauthor | Nakamura, Yasunobu | en_US |
dc.contributor.mitauthor | Oliver, William D. | en_US |
dc.relation.journal | Physical Review Applied | en_US |
dc.eprint.version | Final published version | en_US |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
eprint.status | http://purl.org/eprint/status/PeerReviewed | en_US |
dc.date.updated | 2015-03-11T22:00:16Z | |
dc.language.rfc3066 | en | |
dc.rights.holder | American Physical Society | |
dspace.orderedauthors | Jin, X. Y.; Gustavsson, S.; Bylander, J.; Yan, F.; Yoshihara, F.; Nakamura, Y.; Orlando, T. P.; Oliver, W. D. | en_US |
dc.identifier.orcid | https://orcid.org/0000-0002-7069-1025 | |
dc.identifier.orcid | https://orcid.org/0000-0002-4674-2806 | |
dc.identifier.orcid | https://orcid.org/0000-0002-4436-6886 | |
dspace.mitauthor.error | true | |
mit.license | PUBLISHER_POLICY | en_US |
mit.metadata.status | Complete | |