H. Schmutz

activity

20112025

most citedNew method to study ion-molecule reactions at low temperatures and application to the H

_{2}^{+}

+ H

_{2}

\to

_{3}^{+}

+ H reaction

71 citations · 353 across the 16 of their papers we have counts for

collaborators

Showing 2019Show all

2 papers · 1 filter

physics.atom-ph2019★ 27 cited

Precision measurement of the ionization energy and quantum defects of 39K I

Michael Peper, Felix Helmrich, Jonas Butscher +4

We present absolute-frequency measurements in ultracold 39K samples of the transitions from the ground state to np Rydberg states. A global nonlinear regression of the np1/2 and np…

physics.atom-ph2019★ 18 cited

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

Valentina Zhelyazkova, Matija Žeško, Hansjürg Schmutz +2

Metastable (1s)(2s) $^{3} S_{1}$ 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…