Cavity-mediated long-range interaction for fast multiqubit quantum logic operations

Details Cavity-mediated long-range interaction for fast multiqubit quantum logic operations Cavity-mediated long-range interaction for fast multiqubit quantum logic operations

2005-02-21

arxiv.org/abs/quant-ph/0502130v2

Physics

Quantum Physics

10 pages, 3 figures

Scientific paper

10.1103/PhysRevA.72.052304

Interactions among qubits are essential for performing two-qubit quantum logic operations. However, nature gives us only nearest neighbor interactions in simple and controllable settings. Here we propose a strategy to induce interactions among two atomic entities that are not necessarily neighbors of each other through their common coupling with a cavity field. This facilitates fast multiqubit quantum logic operations through a set of two-qubit operations. The ideas presented here are applicable to various quantum computing proposals for atom based qubits such as, trapped ions, atoms trapped in optical cavities and optical lattices.

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