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A quantum thermometer for measuring ultra-cold temperatures: Researchers show that a quantum sensor using a single atom can accurately measure the coldest places in the universe

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In everyday life, measuring temperature is pretty straightforward. But in the quantum world, which deals with the super small and the ultra-cold, determining how hot or cold something is starts to get more challenging. Now researchers have described a quantum process that uses a single atom as a thermometer to sensitively measure the temperature of an ultra-cold gas.

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"A quantum thermometer for measuring ultra-cold temperatures: Researchers show that a quantum sensor using a single atom can accurately measure the coldest places in the universe", MachPrinciple, September 22, 2020, https://machprinciple.com/post/A-quantum-thermometer-for-measuring-ultra-cold-temperatures-Researchers-show-that-a-quantum-sensor-using-a-single-atom-can-accurately-measure-the-coldest-places-in-the-universe

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