By IQT News posted 14 May 2019

(AsianScientist) Scientists in Hong Kong have found a way to improve the efficiency of quantum memory by cooling rubidium atoms to nearly absolute zero temperatures and increasing the signal-to-noise ratio of single photons.
Quantum memories are essential components for quantum computers. However, the production of highly efficient quantum memories remains a major challenge as it requires a perfectly matched photon-matter quantum interface.
In the present study, researchers led by Professors Du Shengwang and William Mong at the Hong Kong University of Science and Technology created a quantum memory device by trapping billions of rubidium atoms into a hair-like tiny space. Professor Shengwang explained, “Although the quantum memory demonstrated in this work is only for one qubit operation, it opens the possibility for emerging quantum technology and engineering in the future.”

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