251 citations · 834 across the 20 of their papers we have counts for
8 papers · 2 filters
Comment on "The Quantum State of a Propagating Laser Field"
Terry Rudolph, Barry C. Sanders
We comment on the theoretical quantum state of a propagating laser field proposed by van Enk and Fuchs [quant-ph/0104036, quant-ph/0111157] and clarify that the multimode descripti…
Quantum Teleportation and Entanglement Swapping for Spin Systems
Dominic W. Berry, Barry C. Sanders
We analyse quantum teleportation (QT) and entanglement swapping (ES) for spin systems. If the permitted operations are restricted to the Ising interaction, plus local rotations and…
Universal continuous-variable quantum computation: Requirement of optical nonlinearity for photon counting
Stephen D. Bartlett, Barry C. Sanders
Although universal continuous-variable quantum computation cannot be achieved via linear optics (including squeezing), homodyne detection and feed-forward, inclusion of ideal photo…
Quantum Encodings in Spin Systems and Harmonic Oscillators
Stephen D. Bartlett, Hubert de Guise, Barry C. Sanders
We show that higher-dimensional versions of qubits, or qudits, can be encoded into spin systems and into harmonic oscillators, yielding important advantages for quantum computation…
Efficient Classical Simulation of Continuous Variable Quantum Information Processes
Stephen D. Bartlett, Barry C. Sanders, Samuel L. Braunstein +1
We obtain sufficient conditions for the efficient simulation of a continuous variable quantum algorithm or process on a classical computer. The resulting theorem is an extension of…
Quantum walks in higher dimensions
Troy D. Mackay, Stephen D. Bartlett, Leigh T. Stephenson +1
We analyze the quantum walk in higher spatial dimensions and compare classical and quantum spreading as a function of time. Tensor products of Hadamard transformations and the disc…