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Beams of helium atoms in Rydberg states with principal quantum number $n=52$,and traveling with an initial speed of 1950 m/s, have been accelerated,decelerated and guided while confined in moving electric traps generated abovea curved, surface-based electrical transmission line with a segmented centerconductor. Experiments have been performed with atoms guided at constant speed,and with accelerations exceeding $10^7$ m/s$^2$. In each case the manipulatedatoms were detected by spatially resolved, pulsed electric field ionization.The effects of tangential and centripetal accelerations on the effectivetrapping potentials experienced by the atoms in the decelerator have beenstudied, with the resulting observations highlighting contributions from thedensity of excited Rydberg atoms to the acceleration, deceleration and guidingefficiencies in the experiments.

Transmission-line decelerators for atoms in high Rydberg states