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Chinese Physics, 2007, Vol. 16(10): 3097-3103    DOI: 10.1088/1009-1963/16/10/046
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES Prev   Next  

Quantization of the double-qubit structure and quantum computation

Liang Bao-Long(梁宝龙) and Wang Ji-Suo(王继锁)
School of Physical Science and Information Engineering, Liaocheng University, Liao Cheng 252059, China
Abstract  The quantization scheme of a double-qubit structure with superconducting quantum interference devices (SQUIDs) is given. By introducing unitary matrices and using spectral decompositions, the Hamiltonian operator of the system is exactly formulated in compact forms in spin-1/2 notation. A scheme of designing controlled-phase-shift (CPS) gates is also proposed by using this circuit system.
Keywords:  double-qubit      quantization      spectral decomposition      controlled-phase-shift  
Received:  21 March 2007      Revised:  02 April 2007      Accepted manuscript online: 
PACS:  03.67.Lx (Quantum computation architectures and implementations)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No 10574060) and the Natural Science Foundation (Grant No Y2004A09) of Shandong Province, China.

Cite this article: 

Liang Bao-Long(梁宝龙) and Wang Ji-Suo(王继锁) Quantization of the double-qubit structure and quantum computation 2007 Chinese Physics 16 3097

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