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10 papers · 2 filters
Spectral Effects of Fast Response Cross Kerr Non-Linearity on Quantum Gate
P. M. Leung, T. C. Ralph, William J. Munro +1
According to idealized models, a strong Kerr non-linearity may be used to build optical quantum gates for optical quantum information processing by inducing conditional phase shift…
Spectral Effects of Strong Chi-2 Non-Linearity for Quantum Processing
P. M. Leung, William J. Munro, Kae Nemoto +1
Optical non-linearity can be used for parametric amplification and producing down-converted entangled photon pairs that have broad applications. It is known that weak non…
High Performance Quantum Computing
Simon J. Devitt, William J. Munro, Kae Nemoto
The architecture scalability afforded by recent proposals of a large scale photonic based quantum computer, utilizing the theoretical developments of topological cluster states and…
Quantum Repeater with Encoding
Liang Jiang, Jacob M. Taylor, Kae Nemoto +3
We propose a new approach to implement quantum repeaters for long distance quantum communication. Our protocol generates a backbone of encoded Bell pairs and uses the procedure of…
High speed quantum gates with cavity quantum electrodynamics
Chun-Hsu Su, Andrew D. Greentree, William J. Munro +2
Cavity quantum electrodynamic schemes for quantum gates are amongst the earliest quantum computing proposals. Despite continued progress, and the dramatic recent demonstration of p…
Architectural design for a topological cluster state quantum computer
Simon J. Devitt, Austin G. Fowler, Ashley M. Stephens +4
The development of a large scale quantum computer is a highly sought after goal of fundamental research and consequently a highly non-trivial problem. Scalability in quantum inform…
Quantum Repeaters using Coherent-State Communication
Peter van Loock, Norbert Lütkenhaus, W. J. Munro +1
We investigate quantum repeater protocols based upon atomic qubit-entanglement distribution through optical coherent-state communication. Various measurement schemes for an optical…
Generalized parity measurements
Radu Ionicioiu, Anca E. Popescu, William J. Munro +1
Measurements play an important role in quantum computing (QC), by either providing the nonlinearity required for two-qubit gates (linear optics QC), or by implementing a quantum al…
Loss in hybrid qubit-bus couplings and gates
Sebastien G. R. Louis, W. J. Munro, T. P. Spiller +1
We provide a characterization and analysis of the effects of dissipation on oscillator assisted (qubus) quantum gates. The effects can be understood and minimized by looking at the…
Teleportation of composite systems for communication and information processing
Sebastien G. R. Louis, Andrew D. Greentree, W. J. Munro +1
We describe two protocols for efficient data transmission using a single passive bus. Different types of interactions are obtained enabling deterministic transfer and teleportation…