Controlled-NOT logic gate for phase qubits based on conditional spectroscopy

Joydip Ghosh; Michael R. Geller

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Controlled-NOT logic gate for phase qubits based on conditional spectroscopy

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arxiv 1102.0353 v2 pith:A2LEKSS7 submitted 2011-02-02 quant-ph

Joydip Ghosh , Michael R. Geller This is my paper

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keywords gatephasequbitsconditionalcontrolled-notcoupledfidelitylogic

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A controlled-NOT logic gate based on conditional spectroscopy has been demonstrated recently for a pair of superconducting flux qubits [Plantenberg et al., Nature 447, 836 (2007)]. Here we study the fidelity of this type of gate applied to a phase qubit coupled to a resonator (or a pair of capacitively coupled phase qubits). Our results show that an intrinsic fidelity of more than 99% is achievable in 45ns.

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