Characterizing the local vectorial electric field near an atom chip using Rydberg-state spectroscopy
Characterizing the local vectorial electric field near an atom chip using Rydberg-state spectroscopy
We use the sensitive response to electric fields of Rydberg atoms to characterize all three vector components of the local electric field close to an atom-chip surface. We measured Stark-Zeeman maps of $S$ and $D$ Rydberg states using an elongated cloud of ultracold rubidium atoms (temperature $T\ensuremath{\sim}2.5\phantom{\rule{4pt}{0ex}}\ensuremath{\mu}\mathrm{K}$) trapped magnetically $100\phantom{\rule{4pt}{0ex}}\ensuremath{\mu}\mathrm{m}$ …