Oxford Scientists Achieve Quantum Computing Breakthrough Enhancing Data Security
Caption: Experiments on quantum computing in the Beecroft facility, Oxford University Physics
Photo credit: David Nadlinger, Oxford University Physics
Oxford University Physics researchers have achieved a breakthrough in quantum computing, introducing a technology that enhances data security and privacy for cloud-based quantum computing services.
First published in Physical Review Letters, the study details a method known as "blind quantum computing," which allows secure and private access to quantum computing resources over the cloud. The advancement is seen as a critical step towards the broader application of quantum computing in various sectors, including healthcare and finance.
Quantum computing differs significantly from traditional computing, offering superior computational capabilities. However, concerns over data security and the need for specific operating conditions have hindered the technology's wider adoption.
With several tech giants such as Google, Amazon, and IBM already exploring quantum computing services, emphasising robust security measures is paramount for its expansion and development of innovative applications.
The Oxford team's "blind quantum computing" approach ensures a secure connection between users and quantum computing servers.
Professor David Lucas, a co-head of the research team and lead scientist at the UK Quantum Computing and Simulation Hub, said:
“We have shown for the first time that quantum computing in the cloud can be accessed in a scalable, practical way which will also give people complete security and privacy of data, plus the ability to verify its authenticity.”
The technique involves a fibre network link connecting a quantum computing server with a device that detects photons, facilitating secure computing across networks. This method allows for the accurate application of algorithms through real-time adjustments, utilising a combination of quantum memory and photon technology.
Dr. Peter Drmota, the lead author of the study, stated:
“Using blind quantum computing, clients can access remote quantum computers to process confidential data with secret algorithms and even verify the results are correct, without revealing any useful information.
“Realising this concept is a big step forward in both quantum computing and keeping our information safe online.”
The implications of this research extend to the potential development of commercial products that could enhance data privacy for users interacting with quantum cloud computing services.
The project, which benefited from the state-of-the-art Beecroft laboratory facilities at Oxford, received support from the Quantum Computing & Simulation Hub (QCS). The hub is a collaboration among 17 universities backed by various commercial and governmental organisations, with the University of Oxford as the lead.
The QCS Hub is part of the UK National Quantum Technologies Programme, a £1 billion initiative fostering collaboration between industry, academia, and government to advance quantum technologies.
“Never in history have the issues surrounding privacy of data and code been more urgently debated than in the present era of cloud computing and artificial intelligence,'” said Professor David Lucas.
“As quantum computers become more capable, people will seek to use them with complete security and privacy over networks, and our new results mark a step change in capability in this respect.”
