A new implementation of the topological cluster state quantum computer is suggested, in which the basic elements are linear optics, measurements, and a two-dimensional array of quantum dots. This overcomes the need for non-linear devices to create a lattice of entangled photons. We give estimates of the minimum efficiencies needed for the detectors, fusion gates and quantum dots, from a numerical simulation.
@article{arxiv.1005.2915,
title = {A Photonic Implementation for the Topological Cluster State Quantum Computer},
author = {David A. Herrera-Martí and Austin G. Fowler and David Jennings and Terry Rudolph},
journal= {arXiv preprint arXiv:1005.2915},
year = {2015}
}