Science, Space and Technology News 2024
The process allows a remote user to access a quantum computer in the cloud with complete security. Credit: Helene Hainzer, Oxford University Physics. This advance promises to unlock the transformative potential of cloud-based quantum computing and is detailed in a new study published in the influential U.
The process allows a remote user to access a quantum computer in the cloud with complete security. Credit: Helene Hainzer, Oxford University Physics.. This advance promises to unlock the transformative potential of cloud-based quantum computing and is detailed in a new study published in the influential U.S. scientific journalProfessor David Lucas, co-head of the Oxford University Physics research team and lead scientist at the UK Quantum Computing and Simulation Hub. Credit: Martin Small Quantum computing is developing rapidly, paving the way for new applications that could transform services in many areas like healthcare and financial services. It works in a fundamentally different way to conventional computing and is potentially far more powerful. However, it currently requires controlled conditions to remain stable and there are concerns around data authenticity and the effectiveness of current security and encryption systems. Several leading providers of cloud-based services, like Google, Amazon, and IBM, already separately offer some elements of quantum computing. Safeguarding the privacy and security of customer data is a vital precursor to scaling up and expanding its use and for the development of new applications as the technology advances. The new study by researchers at Oxford University Physics addresses these challenges.“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,” said Professor David Lucas, who co-heads the Oxford University Physics research team and is lead scientist at the UK Quantum Computing and Simulation Hub, led from Oxford University Physics. Experiments on quantum computing in the Beecroft facility, Oxford University Physics. Credit: David Nadlinger, Oxford University Physics. In the new study, the researchers use an approach dubbed “blind quantum computing”, which connects two totally separate quantum computing entities – potentially an individual at home or in an office accessing a cloud server – in a completely secure way. Importantly, their new methods could be scaled up to large quantum computations. Peter Drmota, author of the new study who led the experiments on blind quantum computing at Oxford University Physics. Credit: Martin Small. “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’’ said study lead Dr Peter Drmota, of Oxford University Physics. The researchers created a system comprising a fiber network link between a quantum computing server and a simple device detecting photons, or particles of light, at an independent computer remotely accessing its cloud services. This allows so-called blind quantum computing over a network. Every computation incurs a correction which must be applied to all that follow and needs real-time information to comply with the algorithm. The researchers used a unique combination of quantum memory and photons to achieve this. “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.” The results could ultimately lead to commercial development of devices to plug into laptops, to safeguard data when people are using quantum cloud computing services. Researchers exploring quantum computing and technologies at Oxford University Physics have access to the state-of-the-art Beecroft laboratory facility, specially constructed to create stable and secure conditions including eliminating vibration. Reference: “Verifiable Blind Quantum Computing with Trapped Ions and Single Photons” by P. Drmota, D. P. Nadlinger, D. Main, B. C. Nichol, E. M. Ainley, D. Leichtle, A. Mantri, E. Kashefi, R. Srinivas, G. Araneda, C. J. Ballance and D. M. Lucas, 10 April 2024,Funding for the research came from the UK Quantum Computing and Simulation Hub, with scientists from the UK National Quantum Computing Centre, the Paris-Sorbonne University, the University of Edinburgh, and the University of Maryland, collaborating on the work.SciTechDaily: Home of the best science and technology news since 1998. Keep up with the latest scitech news via email or social media.Research from Rice University and the University of Illinois Urbana-Champaign has shown that molecules can scramble quantum information as effectively as black holes, with implications…
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