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A significant milestone in quantum computing has been achieved after researchers on the University of Oxford constructed a scalable quantum supercomputer able to quantum teleportation.
The breakthrough centres on the so-called scalability downside of quantum computing, with the researchers claiming it’s going to enable the next-generation expertise to be realised on an industry-disrupting stage.
The discipline of quantum computing has been round for many years, however solely lately have vital advances been made in the direction of realising them on a sensible scale.
Utilising the properties of quantum physics, these next-generation machines substitute conventional bits – the ‘ones’ and ‘zeros’ used to retailer and switch digital info – with quantum bits (qubits), which may act as a one and a zero on the identical time by a phenomena generally known as superposition.
This give quantum computer systems the potential to be orders of magnitude extra highly effective than right now’s state-of-the-art supercomputers that use typical computing expertise.
It will not be the primary time that scientists have achieved quantum teleportation, with groups beforehand transferring information from one location to a different with out transferring qubits. However it’s the first demonstration of quantum teleportation of logical gates – the minimal elements of an algorithm – throughout a community hyperlink.
The researchers declare the quantum teleportation method may kind the inspiration for a future ‘quantum internet’, which might supply an ultra-secure community for communications, computation and sensing.
“Previous demonstrations of quantum teleportation have focused on transferring quantum states between physically separated systems,” stated Dougal Main, from the Department of Physics on the University of Oxford, who led the examine.
“In our study, we use quantum teleportation to create interactions between these distant systems. By carefully tailoring these interactions, we can perform logical quantum gates – the fundamental operations of quantum computing – between qubits housed in separate quantum computers.
“This breakthrough enables us to effectively ‘wire together’ distinct quantum processors into a single, fully-connected quantum computer.”
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Dougal Main and Beth Nichol engaged on the distributed quantum laptop (John Cairns)
The researchers additionally confirmed that the quantum system could possibly be constructed and scaled utilizing expertise that’s already out there.
“Our experiment demonstrates that network-distributed quantum information processing is feasible with current technology,” stated Professor David Lucas, a principal investigator of the analysis staff and lead scientist on the UK Quantum Computing and Simulation Hub.
“Scaling up quantum computers remains a formidable technical challenge that will likely require new physics insights as well as intensive engineering effort over the coming years.”
The findings had been revealed within the journal Nature, in a examine titled ‘Distributed quantum computing across an optical network link’.
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