# Second-Scale Coherence Measured at the Quantum Projection Noise Limit with Hundreds of Molecular Ions

> Research article (Physical Review Letters, 2020) · cited 33× · AI/ML

**Wikidata**: [openalex:W3005948943](https://www.wikidata.org/wiki/openalex:W3005948943)  
**Source**: https://4ort.xyz/entity/second-scale-coherence-measured-at-the-quantum-projection-noise-limit-with-hundreds-of-molecular-ions