Magnetic field-assisted manipulation and entanglement of Si spin qubits

Calderon, M. J.; Koiller, Belita; Sarma, S. Das

Magnetic field-assisted manipulation and entanglement of Si spin qubits

Authors

Calderon, M. J.

Koiller, Belita

Sarma, S. Das

Description

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