Nature, Published online: 17 June 2026; doi:10. 1038/s41586-026-10617-1 A prototype differential atom interferometer operates at the standard quantum limit with no excess noise beyond atom shot noise, achieving performance in line with the specifications for future long-baseline atom interferomet...

Source: [Nature](https://www.nature.com/articles/s41586-026-10617-1)

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