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Global control and fast solid-state donor electron spin quantum computing
Charles D. Hill, L. C. L. Hollenberg, A. G. Fowler +3
We propose a scheme for quantum information processing based on donor electron spins in semiconductors, with an architecture complementary to the original Kane proposal. We show th…
Robustness of Shor's algorithm
Simon J. Devitt, Austin G. Fowler, Lloyd C. L. Hollenberg
Shor's factorisation algorithm is a combination of classical pre- and post-processing and a quantum period finding (QPF) subroutine which allows an exponential speed up over classi…
Quantum-Dot Cellular Automata using Buried Dopants
Jared H. Cole, Andrew D. Greentree, Cameron J. Wellard +2
The use of buried dopants to construct quantum-dot cellular automata is investigated as an alternative to conventional electronic devices for information transport and elementary c…
Coherent electronic transfer in quantum dot systems using adiabatic passage
Andrew D. Greentree, Jared H. Cole, A. R. Hamilton +1
We describe a scheme for using an all-electrical, rapid, adiabatic population transfer between two spatially separated dots in a triple-quantum dot system. The electron spends no t…
An algorithm for simulating the Ising model on a type-II quantum computer
J. H. Cole, L. C. L. Hollenberg, S. Prawer
Presented here is an algorithm for a type-II quantum computer which simulates the Ising model in one and two dimensions. It is equivalent to the Metropolis Monte-Carlo method and t…
Electrical readout of a spin qubit without double occupancy
Andrew D. Greentree, A. R. Hamilton, Lloyd C. L. Hollenberg +1
We identify a novel mechanism to read out a single solid-state electron spin using an all-electrical spin-to-charge conversion in a closed system. Our scheme uses three donors and…
Voltage Control of Exchange Coupling in Phosphorus Doped Silicon
C. J. Wellard, L. C. L Hollenberg, L. M. Kettle +1
Motivated by applications to quantum computer architectures we study the change in the exchange interaction between neighbouring phosphorus donor electrons in silicon due to the ap…
Implementation of Shor's Algorithm on a Linear Nearest Neighbour Qubit Array
Austin G. Fowler, Simon J. Devitt, Lloyd C. L. Hollenberg
Shor's algorithm, which given appropriate hardware can factorise an integer in a time polynomial in its binary length , has arguable spurred the race to build a practical qu…
Single-spin readout for buried dopant semiconductor qubits
L. C. L. Hollenberg, C. J. Wellard, C. I. Pakes +1
In the design of quantum computer architectures that take advantage of the long coherence times of dopant nuclear and electron spins in the solid-state, single-spin detection for r…
Effects of J-gate potential and interfaces on donor exchange coupling in the Kane quantum computer architecture
L. M. Kettle, H. -S. Goan, Sean C. Smith +2
We calculate the electron exchange coupling for a phosphorus donor pair in silicon perturbed by a J-gate potential and the boundary effects of the silicon host geometry. In additio…