Universal resistances of the quantum resistance–capacitance circuit
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Quantum circuit is generalized to include non-unitary gates which are operated by quantum measurement. A 1-qubit non-unitary gate, together with the controlled-NOT gate and the 1-qubit unitary gate, is shown to constitute a universal set of gates for the non-unitary quantum circuit that reduces the number of the overhead of qubits required to ensure fault tolerance. A reversing measurement sche...
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So far we have talked about quantum computations involving only a few qubits. In this lecture I'd like to begin to discuss how we might scale this up to more than a few qubits and to make something resembling a valid model of computation. To do proper justice to this task, we should probably review the history of the classical theory of computation, and the struggles which the early pioneers in...
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ژورنال
عنوان ژورنال: Nature Physics
سال: 2010
ISSN: 1745-2473,1745-2481
DOI: 10.1038/nphys1690