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Nearest-neighbor coupling asymmetry in the generation of cluster states
Published 18 Jan 2010 in quant-ph | (1001.2877v2)
Abstract: We demonstrate that charge-qubit cluster state generation by capacitive coupling is anisotropic. Specifically, horizontal vs vertical nearest-neighbor inter-qubit coupling differs in a rectangular lattice. We show how to ameliorate this anisotropy by applying potential biases to the array of double dots.
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