Generation of arbitrary all-photonic graph states from quantum emitters

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Date

2019-05-08

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Publisher

Institute of Physics

Abstract

We present protocols to generate arbitrary photonic graph states from quantum emitters that are in principle deterministic.Wefocus primarily on two-dimensional cluster states of arbitrary size due to their importance for measurement-based quantum computing. Our protocols for these and many other types of two-dimensional graph states require a linear array of emitters in which each emitter can be controllably pumped, rotated about certain axes, and entangled with its nearest neighbors.We show that an error on one emitter produces a localized region of errors in the resulting graph state, where the size of the region is determined by the coordination number of the graph.Wedescribe how these protocols can be implemented for different types of emitters, including trapped ions, quantum dots, and nitrogen-vacancy centers in diamond.

Description

Keywords

photonic qubits, quantum computing, cluster state, quantum dots, color centers, quantum communications

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