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From the Editor
Physics Today 73 (11), 10 (2020); https://doi.org/10.1063/PT.3.4602
Search and Discovery
Physics Today 73 (11), 20–21 (2020); https://doi.org/10.1063/PT.3.4611
By taking advantage of the electron spin in nitrogen–vacancy centers and carefully tracking the centers, researchers detected temperature variations as small as 0.22 °C.