Deterministic Entanglement

Photons make robust quantum-information carriers because they don’t directly interact with each other. The price for this is that getting them to interact on demand for the purpose of computation is a challenge. Led by Dr Nicolas Menicucci, the Deterministic Entanglement Work Package will explore two approaches to overcoming this challenge: (1) implementing a deterministic two-photon entangling gate using a quantum memory; and (2) demonstrating continuous-variable (CV) entanglement with squeezing above the threshold required for fault-tolerant quantum computation.

A two-photon entangling gate is required in a photonic-qubit-based computation, while CV methods offer a top-down approach in which all required entanglement is imparted into a cluster state in one shot at the beginning, after which measurements implement the computation. Both are promising technologies, and they share much of the same underlying technology.

People

Dr. Nicolas C Menicucci

Dr. Nicolas C Menicucci

Work Package Leader

Programs

Quantum Communication Theory Program

Quantum Communication is the transmission of information via the coherent exchange of quantum systems, usually optical. Its study has led to new communication technologies, for example quantum key distribution, a secure communication technique with no…

Optical Quantum Computing Theory

The Optical Quantum Computing Theory Program, led by Dr Austin Lund from the University of Queensland, expands understanding in the power of quantum computation from the perspective of quantum optics theory. Intermediate, or non-universal quantum…

Integrated Quantum Networks and Control Program

Coherent control is a promising approach to create a novel quantum device/architecture which has distinctive features from the existing device. This program aims to develop a repeatable and scalable device based on a coherent feedback…

Optical Quantum Information Program

The Optical Quantum Information Program is led by Prof Geoff Pryde based at Griffith University. The Program investigates cutting-edge photonic quantum information approaches for information processing and networked quantum information, as well as making key…

Integrated Quantum Photonics Program

Scalability and integration are key factors for the realisation of practical quantum technologies. The Integrated Quantum Photonics Program, led by A.Prof. Mirko Lobino from Griffith University, will develop these concepts in quantum optics by realising…

Continuous-Variable Quantum Technology Program

The Continuous-Variable Quantum Technology Program is led by Dr. Nicolas Menicucci from RMIT University in Melbourne. World record-breaking experiments in recent years have revealed continuous-variable (CV) cluster states to be a highly promising technology for…

Spinwave Engineering for Active Quantum Memories Program

Many significant goals in optical quantum information systems rely on being able to store and release photons on demand.  In other words, we need a quantum memory for photonic qubits.  One way to do this…

Quantum Repeater Technology Program

A quantum repeater is a device that can faithfully relay quantum information and extend quantum communication range. The Quantum Repeater Technology Program, led by Professor Ping Koy Lam based at The Australian National University in…