The experiment has the potential to unlock our understanding of all sorts of natural phenomena.
Scientists at the University of Oxford have been able to demonstrate a network of two entangled optical atomic clocks for the first time. They have also succeeded in demonstrating how the entanglement between the remote clocks can be used to improve their measurement precision,“Improving the precision of frequency comparisons between multiple atomic clocks offers the potential to unlock our understanding of all sorts of natural phenomena.
However, this is the first time researchers have been able to achieve this between clocks in two separate. “Thanks to years of hard work from the whole team at Oxford, our network apparatus can produce entangled pairs of ions with high fidelity and high rate at the push of a button.
“While our result is very much a proof-of-principle, and the absolute precision we achieve is a few orders of magnitude below the state of the art, we hope that the techniques shown here might someday improve state-of the art systems,” explained Dr Raghavendra Srinivas, another of the paper’s authors. “At some point, entanglement will be required as it provides a path to the ultimate precision allowed by quantum theory.
The devices for the experiment were developed by the UK’s Quantum Computing and Simulation Hub, a consortium of 17 universities led by the University of Oxford that was designed for quantum computing and for communication rather than forOptical atomic clocks are our most precise tools to measure time and frequency.
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