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 (JP)
NISKANEN ANTTI OLAVI (FI)
NISKANEN ANTTI OLAVI (FI)
Application Number:
PCT/JP2007/067240
Publication Date:
March 13, 2008
Filing Date:
August 29, 2007
Export Citation:
Assignee:
NEC CORP (JP)
JAPAN SCIENCE & TECH AGENCY (JP)
YOROZU SHINICHI (JP)
NISKANEN ANTTI OLAVI (FI)
JAPAN SCIENCE & TECH AGENCY (JP)
YOROZU SHINICHI (JP)
NISKANEN ANTTI OLAVI (FI)
International Classes:
H03K19/195; H01L39/22
Foreign References:
| JP2006165812A | 2006-06-22 | |||
| JP2005302847A | 2005-10-27 | |||
| JP2003067181A | 2003-03-07 | |||
| JP2000068495A | 2000-03-03 |
Attorney, Agent or Firm:
IKEDA, Noriyasu et al. (4-10 Nishishinbashi 1-chom, Minato-ku Tokyo 03, JP)
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