Spectroscopy of Josephson-Junction Flux Qubit with Controllable Energy Gap

2009 ◽  
Vol 78 (6) ◽  
pp. 064708 ◽  
Author(s):  
Yoshihiro Shimazu ◽  
Yuuki Saito ◽  
Zenpei Wada
Keyword(s):  
Josephson Junction ◽  
Energy Gap ◽  
Flux Qubit

scholarly journals Four-Josephson-junction flux qubit with controllable energy gap

2009 ◽  
Vol 150 (2) ◽  
pp. 022075 ◽  
Author(s):  
Y Shimazu ◽  
Y Saito ◽  
Z Wada
Keyword(s):  
Josephson Junction ◽  
Energy Gap ◽  
Flux Qubit

Characterization of double-loop four-Josephson-junction flux qubit

2009 ◽  
Vol 469 (15-20) ◽  
pp. 1608-1611 ◽  
Author(s):  
Y. Shimazu ◽  
Y. Saito ◽  
Z. Wada
Keyword(s):  
Josephson Junction ◽  
Double Loop ◽  
Flux Qubit

THEORY OF POINT CONTACT SPECTRA FOR SYSTEM METAL TIP-SUPERCONDUCTOR WITH INTERNAL JOSEPHSON JUNCTION

1989 ◽  
Vol 03 (10) ◽  
pp. 789-794 ◽  
Author(s):  
M. KUPKA ◽  
O. HUDÁK
Keyword(s):  
Josephson Junction ◽  
Energy Gap ◽  
Point Contact ◽  
Model System ◽  
Point Contacts ◽  
Current Voltage ◽  
Current Voltage Characteristics ◽  
Metal Tip ◽  
Contact Metal

We report on the calculations of current-voltage characteristics and dynamical resistivity for a model system (series connected point contact metal — superconductor and Josephson junction of the S-N-S type) as a function of applied voltage. Calculated shape of dV/dI as a function of V shows some qualitative agreement with measured curves on real low-resistivity point contacts of the type metal tip – ceramic superconductor (LaBaCuO, YBaCuO). Method for determination of the energy gap is proposed.

Doublet splitting due to intercell tunneling in three-Josephson-junction flux qubit

2010 ◽  
Vol 470 (20) ◽  
pp. 1555-1557
Author(s):  
Y. Shimazu ◽  
K. Ochiai ◽  
E. Shinozaki
Keyword(s):  
Josephson Junction ◽  
Flux Qubit ◽  
Doublet Splitting

Investigation of the energy gap of Y-Ba-Cu-O by point-contact Josephson-junction techniques

1987 ◽  
Vol 36 (13) ◽  
pp. 7121-7123 ◽  
Author(s):  
A. Barone ◽  
A. Di Chiara ◽  
G. Peluso ◽  
U. Scotti di Uccio ◽  
A. M. Cucolo ◽  
...  
Keyword(s):  
Josephson Junction ◽  
Energy Gap ◽  
Point Contact

Josephson Junction Comparator as a Quantum-Limited Detector for Flux Qubit Readout

2007 ◽  
Vol 17 (2) ◽  
pp. 136-141 ◽  
Author(s):  
T.J. Walls ◽  
D.V. Averin ◽  
K.K. Likharev
Keyword(s):  
Josephson Junction ◽  
Flux Qubit
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