Robuta

https://www.nist.gov/publications/macroscopic-tunnel-splittings-superconducting-phase-qubits
macroscopictunnelsplittingssuperconductingphase
https://www.nist.gov/publications/isotope-shifts-and-hyperfine-splittings-3988-nm-yb-line
isotopehyperfinesplittingsnm
https://www.nist.gov/publications/tunneling-splittings-xy3-type-dimers
tunnelingsplittingstypedimersnist