Multi-Photon Quantum Information Science and Technology in Integrated Optics

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Springer Science & Business Media, Oct 5, 2012 - Science - 118 pages
Photons are an attractive option for testing fundamental quantum physics and developing new quantum-enhanced technology, including highly advanced computers and simulators, as well as precision sensing beyond shot-noise. Traditionally, bulk optical components have been bolted onto optical benches to realize metre-scale quantum circuits. However this approach is ultimately proving unwieldy for increasing the complexity and for scaling up to practical quantum technologies based on photons.

The work presented here demonstrates a series of quantum photonic devices based on waveguide circuits embedded in miniature monolithic chips. This represents a paradigm shift in the underlying architecture of quantum optics and provides key building blocks for all-optical and hybrid quantum technologies.
 

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Contents

1 Introduction
1
2 Background and Methods
11
3 The HongOuMandel Effect in a Waveguide Directional Coupler
29
4 Multi DirectionalCoupler Circuit for Quantum Logic
41
5 Quantum Interference in a Waveguide Interferometer
51
6 Heralded NOON State Generation in Waveguide
68
7 Two Photon Quantum Walks
81
8 Simulating Arbitrary Quantum Statistics with Entangled Photons
95
9 Conclusions and Outlook
112
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