Document Detail


Simple all-microwave entangling gate for fixed-frequency superconducting qubits.
MedLine Citation:
PMID:  21929152     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
We demonstrate an all-microwave two-qubit gate on superconducting qubits which are fixed in frequency at optimal bias points. The gate requires no additional subcircuitry and is tunable via the amplitude of microwave irradiation on one qubit at the transition frequency of the other. We use the gate to generate entangled states with a maximal extracted concurrence of 0.88, and quantum process tomography reveals a gate fidelity of 81%.
Authors:
Jerry M Chow; A D Córcoles; Jay M Gambetta; Chad Rigetti; B R Johnson; John A Smolin; J R Rozen; George A Keefe; Mary B Rothwell; Mark B Ketchen; M Steffen
Publication Detail:
Type:  Journal Article     Date:  2011-08-17
Journal Detail:
Title:  Physical review letters     Volume:  107     ISSN:  1079-7114     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2011 Aug 
Date Detail:
Created Date:  2011-09-20     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  080502     Citation Subset:  IM    
Affiliation:
IBM T. J. Watson Research Center, Yorktown Heights, New York 10598, USA.
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