Heidelberg 2015 – scientific programme

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A: Fachverband Atomphysik

A 36: Poster: Ultra-cold plasmas and Rydberg systems (with Q)

A 36.4: Poster

Thursday, March 26, 2015, 17:00–19:00, C/Foyer

Measurements and numerical calculations of ⁸⁷Rb Rydberg Stark Maps — •Jens Grimmel¹, Markus Mack¹, Florian Karlewski¹, Florian Jessen¹, Malte Reinschmidt¹, Ahmad Rizehbandy¹, Nóra Sándor^2,3, and József Fortágh¹ — ¹Physikalisches Institut der Universität Tübingen — ²Department of Quantumoptics and Quantuminformatics, Wigner Research Center for Physics, Budapest, Hungary — ³Laboratoire de Physique Quantique, ISIS, Strasbourg, France

Rydberg atoms are extremely sensitive to electric fields and consequently have a rich Stark spectrum. We present measurements and numerical calculations of Stark shifts for Rydberg states of 87Rb. We extended the numerical method of [M. Zimmerman et al., Phys. Rev. A 20, 2251-2275 (1979)] to allow for a calculation of the transition strength from low lying states to Stark shifted Rydberg states. The results from these calculations are compared to high precision measurements of Stark Maps for Rubidium Rydberg atoms with principal quantum numbers up to 70 and electric fields ranging beyond the classical ionization threshold. An electromagnetically induced transparency measurement scheme is used to detect Rydberg states inbetween two electrodes of a capacitor in a glass vapor cell.