Hyperfine-induced electric dipole contributions to the electric octupole and magnetic quadrupole atomic clock transitions
Hyperfine-induced electric dipole contributions to the electric octupole and magnetic quadrupole atomic clock transitions
Hyperfine-induced electric dipole contributions may significantly increase probabilities of otherwise very weak electric octupole and magnetic quadrupole atomic clock transitions (e.g., transitions between $s$ and $f$ electron orbitals). These transitions can be used for exceptionally accurate atomic clocks, quantum information processing, and the search for dark matter. They are very …