Topical Workshop on Nonlinear Quantum Photonics - ABSTRACTS

Prof. John Sipe

Department of Physics, University of Toronto

Classical and quantum nonlinear optics: Towards a common framework for integrated optics

In this largely pedagogical talk, we review a framework for treating both classical and quantum problems in nonlinear integrated optics, where elements that are usually associated exclusively with either a classical or quantum calculations, such as coupled mode equations and raising and lowering operators, all play a role.

Mr Geoff Campbell

Quantum Optics Group, Department of Quantum Science, Australian National University

Quantum Nonlinear Optics Using Optical Memory

Memories that are capable of storing and retrieving optical states are a crucial element for quantum information networks. They are at the core of quantum repeater protocols that link together distant quantum processors and are a critical element of optical quantum computing schemes. I will discuss our approach to building high efficiency memories using ultra-cold atomic ensembles and present some of the results that we have achieved. In particular, I will focus on our efforts to integrate linear and non-linear operations directly into the memory.

Dr Hiroki Takesue

Quantum Optical State Control Research Group NTT Basic Research Laboratories, NTT Corporation

Quantum photonics and communication using silicon devices

I will describe our effort to realize basic functions for integrated quantum circuits based on silicon photonics technology, including on-chip correlated/entangled photon-pair sources and a single photon buffer. Quantum communication experiments using silicon-based entanglement sources are also presented.

Prof. Geoff Pryde

Quantum Optics and Information Lab, Centre for Quantum Dynamics & Centre for Quantum Computation and Communication Technology, School of Biomolecular and Physical Sciences, Griffith University

Telecom photons from high-heralding-efficiency sources

Through careful engineering of the pump-beam and crystal parameters in spontaneous parametric downconversion, we generate pairs of photons in a factorable frequency mode. Coupled with high-efficiency superconducting nanowire single-photon detectors (SNSPDs) we achieve a high heralding efficiency single photon source. We discuss the characterisation of this source in terms of all of the relevant parameters, and consider possible future improvements.

Prof. Tim Ralph

ARC Centre of Excellence for Quantum Computation and Communication Technology, University of Queensland

Distributing Entanglement and Processing Quantum Information via Linear and Non-linear Optics

I will review the various methods for distilling entanglement and processing quantum information using linear and non-linear optics and discuss some new approaches.

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