Fluorescence-lifetime-limited trapping of Rydberg helium atoms on a chip

Valentina Zhelyazkova, Matija Žeško, Hansjürg Schmutz +2

Metastable (1s)(2s) ${}^3{\mathrm{S}}_1$ helium atoms produced in a supersonic beam were excited to Rydberg-Stark states (with $n$ in the $27-30$ range) in a cryogenic environment and sub…