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Controlled phase gate for solid-state charge qubits

S. G. Schirmer·D. K. L. Oi·A. D. Greentree
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Abstract

We describe a mechanism for realizing a controlled phase gate for solid-state charge qubits. By augmenting the positionally defined qubit with an auxiliary state, and changing the charge distribution in the three-dot system, we are able to effectively switch the Coulombic interaction, effecting an entangling gate. We consider two architectures, and numerically investigate their robustness to gate noise.

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S. G. Schirmer, D. K. L. Oi, A. D. Greentree. 2004-10-08. Controlled phase gate for solid-state charge qubits. https://doi.org/10.1103/physreva.71.012325

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