States in quantum superposition are notoriously fragile, but researchers in China have reported creating such a state that lasted for a whopping 23 minutes and 20 seconds. While this record-breaking result is exciting in itself, the team believes that it could open new ways to high-precision measurements and even information processing for quantum computers – possibly even allowing scientists to probe the limits of physical theories.

A yet-to-be peer-reviewed study by scientists at the University of Science and Technology of China involved cooling 10,000 ytterbium atoms to just a few thousandths of a degree above absolute zero and trapping them using light. Each atom was precisely controlled and placed into a superposition of two distinct spin states. This is known as a "quantum cat" stat

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