Abstract:
Quantum operations with a charge solid-state qubit whose logical states are formed by two spatially separated localized states of an electron in the double-dot structure are studied theoretically. We show that it is possible to perform various one-qubit rotations making use of the microwave pulses tuned to the resonances between the localized states and the excited state delocalized over the nanostructure. Explicit analytic expression for the time-dependent electron state vector is derived, and the appropriate pulse parameters are determined.
Citation:
L. A. Openov, A. V. Tsukanov, “Charge qubit rotations in a double-dot nanostructure”, Pis'ma v Zh. Èksper. Teoret. Fiz., 80:7 (2004), 572–575; JETP Letters, 80:7 (2004), 503–506