2.8k citations · 14.6k across the 173 of their papers we have counts for
13 papers · 1 filter
A theoretical investigation into the microwave spectroscopy of a phosphorus-donor charge-qubit in silicon: Coherent control in the Si:P quantum computer architecture
C. J. Wellard, L. C. L. Hollenberg, S. Das Sarma
We present a theoretical analysis of a microwave spectroscopy experiment on a charge qubit defined by a P donor pair in silicon, for which we calculate Hamiltonian parameters…
Scheme for direct measurement of a general two-qubit Hamiltonian
Simon J. Devitt, Jared H. Cole, Lloyd C. L. Hollenberg
The construction of two-qubit gates appropriate for universal quantum computation is of enormous importance to quantum information processing. Building such gates is dependent on a…
Quantum gate for Q switching in monolithic photonic bandgap cavities containing two-level atoms
Andrew D. Greentree, J. Salzman, Steven Prawer +1
Photonic bandgap cavities are prime solid-state systems to investigate light-matter interactions in the strong coupling regime. However, as the cavity is defined by the geometry of…
Information free quantum bus for generating stabiliser states
Simon J. Devitt, Andrew D. Greentree, Lloyd C. L. Hollenberg
Efficient generation of spatially delocalised entangled states is at the heart of quantum information science. Generally flying qubits are proposed for long range entangling intera…
Multiplayer quantum Minority game with decoherence
Adrian P. Flitney, Lloyd C. L. Hollenberg
A quantum version of the Minority game for an arbitrary number of agents is considered. It is known that when the number of agents is odd, quantizing the game produces no advantage…
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…
Precision characterisation of two-qubit Hamiltonians via entanglement mapping
Jared H. Cole, Simon J. Devitt, Lloyd C. L. Hollenberg
We show that the general Heisenberg Hamiltonian with non-uniform couplings can be characterised by mapping the entanglement it generates as a function of time. Identification of th…
Quantum information transport to multiple receivers
Andrew D. Greentree, Simon J. Devitt, Lloyd C. L. Hollenberg
The importance of transporting quantum information and entanglement with high fidelity cannot be overemphasized. We present a scheme based on adiabatic passage that allows for tran…
Optically induced spin to charge transduction in donor spin read-out
M. J. Testolin, Andrew D. Greentree, C. J. Wellard +1
The proposed read-out configuration D+D- for the Kane Si:P architecture[Nature 393, 133 (1998)] depends on spin-dependent electron tunneling between donors, induced adiabatically b…
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…
Donor Electron Wave Functions for Phosphorus in Silicon: Beyond Effective Mass Theory
C. J. Wellard, L. C. L. Hollenberg
We calculate the electronic wave-function for a phosphorus donor in silicon by numerical diagonalisation of the donor Hamiltonian in the basis of the pure crystal Bloch functions.…
Analysis and Geometric Optimization of Single Electron Transistors for Read-Out in Solid-State Quantum Computing
Vincent I. Conrad, Andrew D. Greentree, David N. Jamieson +1
The single electron transistor (SET) offers unparalled opportunities as a nano-scale electrometer, capable of measuring sub-electron charge variations. SETs have been proposed for…
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…