Millen, J;
Lochead, G;
Jones, MPA;
(2010)
Two-Electron Excitation of an Interacting Cold Rydberg Gas.
PHYS REV LETT
, 105
(21)
, Article 213004. 10.1103/PhysRevLett.105.213004.
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Abstract
We report the creation of an interacting cold Rydberg gas of strontium atoms. We show that the excitation spectrum of the inner valence electron is sensitive to the interactions in the Rydberg gas, even though they are mediated by the outer Rydberg electron. By studying the evolution of this spectrum we observe density-dependent population transfer to a state of higher angular momentum l. We determine the fraction of Rydberg atoms transferred, and identify the dominant transfer mechanism to be l-changing electron-Rydberg collisions associated with the formation of a cold plasma.
| Type: | Article |
|---|---|
| Title: | Two-Electron Excitation of an Interacting Cold Rydberg Gas |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.105.213004 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.105.213004 |
| Language: | English |
| Additional information: | © 2010 The American Physical Society |
| Keywords: | AUTOIONIZING SERIES, ATOMS, STATES, BLOCKADE, PLASMA, SR |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/1320673 |
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