Efficient one-step generation of large cluster states with solid-state circuits

Details Efficient one-step generation of large cluster states with solid-state circuits Efficient one-step generation of large cluster states with solid-state circuits

2006-09-17

arxiv.org/abs/quant-ph/0609123v2

Phys. Rev. A 75, 052319 (2007)

Physics

Quantum Physics

4 pages, 1 figure

Scientific paper

10.1103/PhysRevA.75.052319

Highly entangled states called cluster states are a universal resource for measurement-based quantum computing (QC). Here we propose an efficient method for producing large cluster states using superconducting quantum circuits. We show that a large cluster state can be efficiently generated in just one step by turning on the inter-qubit coupling for a short time. Because the inter-qubit coupling is only switched on during the time interval for generating the cluster state, our approach is also convenient for preparing the initial state for each qubit and for implementing one-way QC via single-qubit measurements. Moreover, the cluster state is robust against parameter variations.

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