27–29 Aug 2014
Nordita, Stockholm
Europe/Stockholm timezone

Quantum information: from pure science to today’s technologies, Part II

28 Aug 2014, 11:30
1h
122:026 (Nordita, Stockholm)

122:026

Nordita, Stockholm

Speaker

Raymond Laflamme

Description

Around 1980, Charley Bennett (IBM) apparently asked Richard Feynman if the uncertainty principles in quantum mechanics would limit the precision at which we will be able to compute. Feynman thought about it and quickly realised that not only there are no inherent limitations to the precision at which we can compute but quantum mechanics offers an opportunity to simulate quantum systems something which is apparently exponentially hard to do. That was one the first realisation that quantum information can be much more than its classical counterpart. Over the last 30 years, quantum information science has grown from pure theoretical science to new surprising applications, devices and technologies. Quantum computers, one the most coveted of these technologies, promise to fundamentally change how we process information. The quest towards a quantum computer has already brought deep insights into our quantum world and new ways to control and harness the unusual quantum behaviour for computation. Yet, some of the most interesting insights have come along the road to this holy grail in computing. We’ve discovered spinoffs of these ideas that have led to new and improved quantum technologies. During this presentation, I will share examples of quantum technologies – technologies where some are still in the labs, but some are in the market today. For example, I will show how a challenge with the inhomogeneity of magnetic field in quantum computing led to a device used today in oil exploration. I will also share how a superconducting qubit, led to a sensor that is much more precise than its classical counterpart. In each example, I will provide an overview of the technology, explain the science behind the technology, and how quantum information was used to solve a particular problem.

Primary author

Raymond Laflamme

Presentation materials

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