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A photonic cluster state machine gun

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Cluster states are multi-qubit entangled states which have the remarkable property that, once prepared, they can be used to perform quantum computation by making only single qubit measurements. The problem of constructing a quantum computer therefore reduces to that of preparing these states. Over the last few years one of the more promising architectures for doing so has been single photon optics. However the resource requirements are still prohibitive. In this talk I will discuss a way of turning a single photon source – in particular one built from a self-assembled quantum dot – into a device capable of firing out long strings of entangled cluster state. Such a device would reduce the resource requirements for optical quantum computing by many orders of magnitude.

This talk is part of the CQIF Seminar series.

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