Charge qubit rotations in a double-dot nanostructure
arXiv:cond-mat/0411010 · doi:10.1134/1.1839300
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.
5 pages, 1 figure