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Silicon quantum computation based on magnetic dipolar coupling

Rogerio de Sousa·J. D. Delgado·S. Das Sarma
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Abstract

A dipolar gate alternative to the exchange gate based Kane quantum computer is proposed where the qubits are electron spins of shallow group V donors in silicon. Residual exchange coupling is treated as gate error amenable to quantum error correction, removing the stringent requirements on donor positioning characteristic of all silicon exchange-based implementations [B. Koiller et al., Phys. Rev. Lett. 88, 027903 (2002)]. Contrary to common speculation, such a scheme is scalable with no overhead in gating time even though it is based on long-range dipolar inter-qubit coupling.

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Rogerio de Sousa, J. D. Delgado, S. Das Sarma. 2004-08-26. Silicon quantum computation based on magnetic dipolar coupling. https://doi.org/10.1103/physreva.70.052304

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