The potential of next-generation quantum computing is poised to be accessible to millions of individuals and companies, thanks to a breakthrough by scientists at Oxford University Physics that ensures security and privacy. Published in Physical Review Letters, the study details how cloud-based quantum computing can be transformative in various sectors like healthcare and financial services, offering unparalleled power compared to conventional computing. Despite the progress in quantum computing, maintaining stable conditions is crucial, and concerns exist around data authenticity and the efficacy of current security measures.
Leading providers of cloud-based services such as Google, Amazon, and IBM already offer aspects of quantum computing, but safeguarding customer data is imperative for its widespread adoption and expansion. The researchers at Oxford University Physics aim to address these challenges through their innovative methods. Professor David Lucas highlights the significance of complete security, privacy, and data authenticity in accessing cloud-based quantum computing, paving the way for the development of new applications and technologies as the field progresses.
The study introduces the concept of “blind quantum computing,” which enables secure connections between separate quantum computing entities, allowing individuals to access cloud servers without compromising data privacy. The scalability of their methods is underscored, showing potential for large-scale quantum computations. Dr. Peter Drmota emphasizes that using blind quantum computing enables clients to process confidential data with secret algorithms and verify outcomes without disclosing pertinent information, enhancing both quantum computing and online information security.
Establishing a system that connects a quantum computing server with a device detecting photons through a fiber network link, the researchers demonstrate the feasibility of conducting blind quantum computing over a network. Each computation necessitates real-time corrections to align with the algorithm, achieved through a blend of quantum memory and photon detection. Professor David Lucas notes the urgency of preserving data and code privacy in the era of cloud computing and artificial intelligence, underscoring the significance of the team’s breakthrough in ensuring quantum computing security.
The outcomes of this research could potentially lead to the commercial development of devices that enhance data security during the use of quantum cloud computing services, possibly through devices that can be plugged into laptops. Oxford University Physics researchers benefit from the Beecroft laboratory facility, designed to provide stable and secure conditions for exploring quantum computing and technologies. Collaborating with institutions like the UK National Quantum Computing Centre and the University of Edinburgh, the research was funded by the UK Quantum Computing and Simulation (QCS) Hub, aiming to propel advancements in quantum computing security and privacy.
