306 citations · 1.3k across the 20 of their papers we have counts for
9 papers · 1 filter
High precision quantum control of single donor spins in silicon
Rajib Rahman, Cameron J. Wellard, Forrest R. Bradbury +4
The Stark shift of the hyperfine coupling constant is investigated for a P donor in Si far below the ionization regime in the presence of interfaces using Tight-binding and Band Mi…
A precise CNOT gate in the presence of large fabrication induced variations of the exchange interaction strength
M. J. Testolin, C. D. Hill, C. J. Wellard +1
We demonstrate how using two-qubit composite rotations a high fidelity controlled-NOT (CNOT) gate can be constructed, even when the strength of the interaction between qubits is no…
Identifying a Two-State Hamiltonian in the Presence of Decoherence
Jared H. Cole, Andrew D. Greentree, Daniel K. L. Oi +3
Mapping the system evolution of a two-state system allows the determination of the effective system Hamiltonian directly. We show how this can be achieved even if the system is dec…
Spin transport and quasi 2D architectures for donor-based quantum computing
L. C. L. Hollenberg, A. D. Greentree, A. G. Fowler +1
Through the introduction of a new electron spin transport mechanism, a 2D donor electron spin quantum computer architecture is proposed. This design addresses major technical issue…
Identifying an Experimental Two-State Hamiltonian to Arbitrary Accuracy
Jared H. Cole, Sonia G. Schirmer, Andrew D. Greentree +3
Precision control of a quantum system requires accurate determination of the effective system Hamiltonian. We develop a method for estimating the Hamiltonian parameters for some un…
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…
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…
Error Rate of the Kane Quantum Computer CNOT Gate in the Presence of Dephasing
Austin G. Fowler, Cameron J. Wellard, Lloyd C. L. Hollenberg
We study the error rate of CNOT operations in the Kane solid state quantum computer architecture. A spin Hamiltonian is used to describe the system. Dephasing is included as expone…
A Non-Adiabatic Controlled Not Gate for the Kane Solid State Quantum Computer
C. Wellard, L. C. L. Hollenberg, H. C. Pauli
The method of iterated resolvents is used to obtain an effective Hamiltonian for neighbouring qubits in the Kane solid state quantum computer. In contrast to the adiabatic gate pro…