2012/08/03 by H. Hattermann, Markus Mack, M. Mack +8 · 3 citations
Chemistry · Computer Science · Physics and Astronomy · #Atom (system on chip) #Atomic physics #Chemistry #Cold Atom Physics and Bose-Einstein Condensates #Electric field #Ion #Ionization #Physics #Principal quantum number #Quantum #Quantum Information and Cryptography #Quantum mechanics #Quantum optics and atomic interactions #Rubidium #Rydberg atom #Rydberg formula #Rydberg matter #cond-mat.quant-gas #physics.atom-ph
paper · pdf · doi:10.1103/physreva.86.022511
published as Phys. Rev. A 86, 022511 (2012) · 4 pages, 3 figures Submitted to Phys. Rev. A
arxiv created 2012/08/03 · openalex publication_date 2012/08/17 · arxiv updated 2012/08/20 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We observe the shift of Rydberg levels of rubidium close to a copper surface when atomic clouds are repeatedly deposited on it. We measure transition frequencies of rubidium to S and D Rydberg states with principal quantum numbers n between 31 and 48 using the technique of electromagnetically induced transparency. The spectroscopic measurement shows a strong increase of electric fields towards the surface that evolves with the deposition of atoms. Starting with a clean surface, we measure the evolution of electrostatic fields in the range between 30 and 300 \ensuremathμm from the surface. We find that after the deposition of a few hundred atomic clouds, each containing \ensuremath∼106 atoms, the field of adsorbates reaches 1 V/cm for a distance of 30 \ensuremathμm from the surface. This evolution of the electrostatic field sets serious limitations on cavity QED experiments proposed for Rydberg atoms on atom chips.