Single-qubit operations in the double-donor structure driven by optical and voltage pulses
arXiv:0706.3289 · doi:10.1103/PhysRevB.76.035328
Abstract
We study theoretically the quantum dynamics of an electron in the singlyionized double-donor structure in the semiconductor host under the influence of laser pulses whose frequencies are close to structure resonant frequencies. This system can be used as a charge qubit where the logical states are defined by the lowest two energy states of the remaining valence electron localized around one or another donor. The quantum operations are performed via resonant or Raman-like transitions between the localized (qubit) states and the excited states delocalized over the structure, combined with phase shifts between qubit states generated by voltage pulses. The possibility of realization of arbitrary single-qubit rotations is demonstrated.
to appear in Phys. Rev. B
References in corpus (5)
- Coherent electronic transfer in quantum dot systems using adiabatic passage
- Quantum information transport to multiple receivers
- Rabi oscillations in the four-level double-dot structure under the influence of the resonant pulse
- Optical Detection of a Single Nuclear Spin
- Electrical readout of a spin qubit without double occupancy