Generation of three-dimensional graph state with Josephson charge qubits

On the basis of generations of one-dimensional and two-dimensional graph states, we generate a three-dimensional N3-qubit graph state based on Josephson charge qubits. Since any two charge qubits can be selectively and effectively coupled by a common inductance, the controlled phase transform betwee...

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Bibliographic Details
Published in:Journal of physics. Condensed matter 2006-12, Vol.18 (49), p.L599-L604
Main Authors: Zheng, Xiao-Hu, Cao, Zhuo-Liang
Format: Article
Language:English
Subjects:
Applied sciences
Classical and quantum physics: mechanics and fields
Electronics
Exact sciences and technology
Physics
Quantum computation
Quantum information
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Superconducting devices
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Summary:On the basis of generations of one-dimensional and two-dimensional graph states, we generate a three-dimensional N3-qubit graph state based on Josephson charge qubits. Since any two charge qubits can be selectively and effectively coupled by a common inductance, the controlled phase transform between any two-qubit states can be performed. Accordingly, we can generate arbitrary multi-qubit graph states corresponding to arbitrary shape graphs, which meet the expectations of various quantum information processing schemes. All the devices in the scheme are well within current technology. It is a simple, scalable and feasible scheme for the generation of various graph states based on Josephson charge qubits.
ISSN:0953-8984
1361-648X
DOI:10.1088/0953-8984/18/49/L01