Title:
QUANTUM BIT VARIABLE COUPLING METHOD, QUANTUM COMPUTING CIRCUIT USING THE METHOD, AND VARIABLE COUPLER
Document Type and Number:
WIPO Patent Application WO/2008/029815
Kind Code:
A1
Abstract:
There is provided a quantum computing circuit comprising first and second superconductive
magnetic flux quantum bit elements (101, 102) and a coupling superconductive
magnetic flux quantum bit element (103). The first and second superconductive
magnetic flux quantum bit elements form superconductive loops including a plurality
of Josephson junctions, are biased at a half-quantum magnetic flux, and have
mutually different characteristic frequencies. The coupling superconductive
magnetic flux quantum bit element performs variable control between the elements
(101, 102) in a parametric way by applying a microwave magnetic field pulse equal
tothe frequency difference between the elements (101, 102).
Inventors:
YOROZU, Shinichi (7-1 Shiba 5-chome, Minato-k, Tokyo 01, 1088001, JP)
萬伸一 (〒01 東京都港区芝五丁目７番１号日本電気株式会社内 Tokyo, 1088001, JP)
萬伸一 (〒01 東京都港区芝五丁目７番１号日本電気株式会社内 Tokyo, 1088001, JP)
Application Number:
JP2007/067240
Publication Date:
March 13, 2008
Filing Date:
August 29, 2007
Export Citation:
Assignee:
NEC Corporation (7-1 Shiba 5-chome, Minato-ku Tokyo, 01, 1088001, JP)
日本電気株式会社 (〒01 東京都港区芝五丁目７番１号 Tokyo, 1088001, JP)
Japan Science and Technology Agency (4-1-8, Honcho Kawaguchi-sh, Saitama 12, 3320012, JP)
独立行政法人科学技術振興機構 (〒12 埼玉県川口市本町４－１－８ Saitama, 3320012, JP)
日本電気株式会社 (〒01 東京都港区芝五丁目７番１号 Tokyo, 1088001, JP)
Japan Science and Technology Agency (4-1-8, Honcho Kawaguchi-sh, Saitama 12, 3320012, JP)
独立行政法人科学技術振興機構 (〒12 埼玉県川口市本町４－１－８ Saitama, 3320012, JP)
International Classes:
H03K19/195; H01L39/22
Attorney, Agent or Firm:
IKEDA, Noriyasu et al. (The 3rd Mori Building, 4-10 Nishishinbashi 1-chom, Minato-ku Tokyo 03, 1050003, JP)
Download PDF: