The article discusses the evolving role of National Metrology Institutes (NMIs) in the post-redefinition of the International System of Units (SI). Prior to 2019, NMIs like NIST maintained physical standards for measurements, but the SI redefinition now allows for quantum-based, independent standards.
The authors argue that NMIs can continue to play a crucial role in ensuring measurement quality through a global network. They will be needed to develop automated measurement procedures, oversee their implementation, and maintain complex quantum standards.
Key areas where NMI expertise will remain critical include quantum computing, potential redefinition of the second, and ultra-secure quantum communications. The authors emphasize the importance of NMIs’ “immense expertise” in these emerging fields.
The article was published in Nature Physics and written by NIST researchers along with colleagues from nine metrology organizations worldwide.
Keywords: quantum standards, metrology, Planck constant, NMIs, quantum information
