Resonant-pulse operations on the buried donor charge qubits in semiconductors

Abstract

A new scheme is proposed for rotations of a double-donor charge qubit whose logical states are defined by the two lowest energy states of a single electron localized around one or another donor. It is shown that making use of the microwave pulses tuned to the resonance with an auxiliary excited molecular level allows for implementation of various one-qubit operations in very short times. Decoherence effects are analyzed by the example of the P${}_2^{+}$:Si system and shown to be weak enough for experimental realization of this scheme being possible.

arXiv comment4 pages, 1 figure, to appear in PRB

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Cited by in corpus (9)

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• Coherent Tunneling Adiabatic Passage with the Alternating Coupling Scheme
• Single-qubit operations in the double-donor structure driven by strongly detuned optical pulses
• Single-qubit operations in the double-donor structure driven by optical and voltage pulses
• A theoretical investigation into the microwave spectroscopy of a phosphorus-donor charge-qubit in silicon: Coherent control in the Si:P quantum computer architecture
• Analytical model of non-Markovian decoherence in donor-based charge quantum bits
• Aharonov-Bohm phase operations on a double-barrier nanoring charge qubit
• Phonon-induced decoherence of the two-level quantum subsystem due to relaxation and dephasing processes
• Laser-induced operations with charge qubits in a double-well nanostructure