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 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.展开更多
基金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.
文摘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.
