Magnetic field-assisted manipulation and entanglement of Si spin qubits

Details Magnetic field-assisted manipulation and entanglement of Si spin qubits Magnetic field-assisted manipulation and entanglement of Si spin qubits

2006-02-24

arxiv.org/abs/cond-mat/0602597v2

Phys. Rev. B 74, 081302(R) (2006)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures. 1 ref and 1 footnote added

Scientific paper

10.1103/PhysRevB.74.081302

Architectures of donor-electron based qubits in silicon near an oxide interface are considered theoretically. We find that the precondition for reliable logic and read-out operations, namely the individual identification of each donor-bound electron near the interface, may be accomplished by fine-tuning electric and magnetic fields, both applied perpendicularly to the interface. We argue that such magnetic fields may also be valuable in controlling two-qubit entanglement via donor electron pairs near the interface.

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