274 citations · 763 across the 6 of their papers we have counts for
6 papers
Controlling discrete quantum walks: coins and intitial states
Ben Tregenna, Will Flanagan, Rik Maile +1
In discrete time, coined quantum walks, the coin degrees of freedom offer the potential for a wider range of controls over the evolution of the walk than are available in the conti…
Decoherence in Discrete Quantum Walks
Viv Kendon, Ben Tregenna
We present an introduction to coined quantum walks on regular graphs, which have been developed in the past few years as an alternative to quantum Fourier transforms for underpinni…
Decoherence in a quantum walk on the line
Viv Kendon, Ben Tregenna
We have studied how decoherence affects a quantum walk on the line. As expected, it is highly sensitive, consisting as it does of an extremely delocalized particle. We obtain an ex…
Decoherence can be useful in quantum walks
Viv Kendon, Ben Tregenna
We present a study of the effects of decoherence in the operation of a discrete quantum walk on a line, cycle and hypercube. We find high sensitivity to decoherence, increasing wit…
Quantum quincunx in cavity quantum electrodynamics
Barry C. Sanders, Stephen D. Bartlett, Ben Tregenna +1
We introduce the quantum quincunx, which physically demonstrates the quantum walk and is analogous to Galton's quincunx for demonstrating the random walk. In contradistinction to t…
Quantum Computing in a Macroscopic Dark Period
Ben Tregenna, Almut Beige, Peter L. Knight
Decoherence-free subspaces allow for the preparation of coherent and entangled qubits for quantum computing. Decoherence can be dramatically reduced, yet dissipation is an integral…