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Quantum information processing based on P-31 nuclear spin qubits in a quasi-one-dimensional Si-28 nanowire

Issai Shlimak·Israel Vagner
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Abstract

We suggest a new method of quantum information processing based on the precise placing of P-31 isotope atoms in a quasi-one-dimensional Si-28 nanowire using isotope engineering and neutron-transmutation doping of the grown structures. In our structure, interqubit entanglement is based on the indirect interaction of P-31 nuclear spins with electrons localized in a nanowire. This allows one to control the coupling between distant qubits and between qubits separated by non-qubit neighboring nodes. The suggested method enables one to fabricate structures using present-day nanolithography. Numerical estimates show the feasibility of the proposed device and method of operation.

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Issai Shlimak, Israel Vagner. 2006-12-03. Quantum information processing based on P-31 nuclear spin qubits in a quasi-one-dimensional Si-28 nanowire. https://doi.org/10.1103/physrevb.75.045336

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