A Photonic Implementation for the Topological Cluster State Quantum Computer

TL;DR

This paper proposes a photonic approach to topological cluster state quantum computing using linear optics and quantum dots, reducing the need for non-linear devices and providing efficiency estimates through simulations.

Contribution

It introduces a novel photonic implementation of topological quantum computing with linear optics and quantum dots, avoiding non-linear devices.

Findings

Estimated detector and gate efficiencies required for feasibility

Numerical simulations support the proposed implementation

Reduces complexity by eliminating non-linear devices

Abstract

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.