Scheme for realizing quantum computation and quantum information transfer with superconducting qubits coupling to a 1D transmission line resonator

作者：Shi Zhen Gang^*; Chen Xiong Wen; Zhu Xi Xiang; Song Ke Hui

来源：Chinese Physics B, 2009, 18(3): 910-914.

DOI：10.1088/1674-1056/18/3/011

• dc-SQUID charge qubits
• 1D transmission line resonator
• quantum logic gates
• quantum information transfer

This paper proposes a simple scheme for realizing one-qubit and two-qubit quantum gates as well as multiqubit entanglement based on dc-SQUID charge qubits through the control of their coupling to a 1D transmission line resonator (TLR). The TLR behaves effectively as a quantum data-bus mode of a harmonic oscillator, which has several practical advantages including strong coupling strength, reproducibility, immunity to 1/f noise, and suppressed spontaneous emission. In this protocol, the data-bus does not need to stay adiabatically in its ground state, which results in not only fast quantum operation, but also high-fidelity quantum information processing. Also, it elaborates the transfer process with the 1D transmission line.

• 出版日期2009-3
• 单位怀化学院