Practical quantum error correction

Summary

How can we protect quantum information stored in real physical systems, given that quantum superpositions only survive for fractions of a second?

Supervisor(s)

Dr Arne Grimsmo, Professor Steven Flammia

Research Location

School of Physics

Program Type

Masters/PHD

Synopsis

Quantum computers exploit exotic properties of quantum mechanics such as entanglement and superpositions to perform computational tasks that are impossible for conventional computers.  Given that quantum states are very fragile and superpositions only survive for fractions of a second in real systems, it might seem that quantum computers are an impossible dream.  One of the most surprising scientific discoveries of the last few decades is that this is, in fact, not the case, thanks to two basic ideas: quantum error correction and fault-tolerance.

In this theory project we will develop practical error correction schemes for quantum information encoded into bosonic modes. An example of a bosonic mode is a standing wave of the electromagnetic field between two mirrors, or the electromagnetic field in a quantum LC circuit. This is currently one of the most promising approaches to quantum error correction and a very active area of both theoretical and experimental research. There are several possible student opportunities within this project, suitable for both undergraduate and postgraduate level, with a mix of numerical and analytical work.

Additional Information

HDR Inherent Requirements

In addition to the academic requirements set out in the Science Postgraduate Handbook, you may be required to satisfy a number of inherent requirements to complete this degree. Example of inherent requirement may include:

- Confidential disclosure and registration of a disability that may hinder your performance in your degree;
- Confidential disclosure of a pre-existing or current medical condition that may hinder your performance in your degree (e.g. heart disease, pace-maker, significant immune suppression, diabetes, vertigo, etc.);
- Ability to perform independently and/or with minimal supervision;
- Ability to undertake certain physical tasks (e.g. heavy lifting);
- Ability to undertake observatory, sensory and communication tasks;
- Ability to spend time at remote sites (e.g. One Tree Island, Narrabri and Camden);
- Ability to work in confined spaces or at heights;
- Ability to operate heavy machinery (e.g. farming equipment);
- Hold or acquire an Australian driver’s licence;
- Hold a current scuba diving license;
- Hold a current Working with Children Check;
- Meet initial and ongoing immunisation requirements (e.g. Q-Fever, Vaccinia virus, Hepatitis, etc.)

You must consult with your nominated supervisor regarding any identified inherent requirements before completing your application.

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Keywords

Quantum Computing, quantum error correction, quantum optics

Opportunity ID

The opportunity ID for this research opportunity is: 2679

Other opportunities with Dr Arne Grimsmo

Other opportunities with Professor Steven Flammia