83 citations · 238 across the 6 of their papers we have counts for
6 papers
A high-precision rf trap with minimized micromotion for an In+ multiple-ion clock
Karsten Pyka, Norbert Herschbach, Jonas Keller +1
We present an experiment to characterize our new linear ion trap designed for the operation of a many-ion optical clock using 115-In^+ as clock ions. For the characterization of th…
Linear Paul trap design for an optical clock with Coulomb crystals
Norbert Herschbach, Karsten Pyka, Jonas Keller +1
We report on the design of a segmented linear Paul trap for optical clock applications using trapped ion Coulomb crystals. For an optical clock with an improved short-term stabilit…
A Laser System for the Spectroscopy of Highly-Charged Bismuth Ions
S. Albrecht, S. Altenburg, C. Siegel +2
We present and characterize a laser system for the spectroscopy on highly-charged ^209Bi^82+ ions at a wavelength of 243.87 nm. For absolute frequency stabilization, the laser syst…
A Large Atom Number Metastable Helium Bose-Einstein Condensate
A. S. Tychkov, T. Jeltes, J. M. McNamara +4
We have produced a Bose-Einstein condensate of metastable helium (4He*) containing over 1.5x10^7 atoms, which is a factor of 25 higher than previously achieved. The improved starti…
Collisional Properties of Cold Spin-Polarized Metastable Neon Atoms
P. Spoden, M. Zinner, N. Herschbach +3
We measure the rates of elastic and inelastic two-body collisions of cold spin-polarized neon atoms in the metastable 3P2 state for 20^Ne and 22^Ne in a magnetic trap. From particl…
Effect of atomic transfer on the decay of a Bose-Einstein condensate
Pawel Zin, Andrzej Dragan, Szymon Charzynski +4
We present a model describing the decay of a Bose-Einstein condensate, which assumes the system to remain in thermal equilibrium during the decay. We show that under this assumptio…