Collective state measurement of mesoscopic ensembles with single-atom resolution
Atomic Physics
2015-06-04 v2 Quantum Physics
Abstract
For mesoscopic ensembles containing 100 or more atoms we measure the total atom number and the number of atoms in a specific hyperfine state with single-atom resolution. The measurement detects the atom-induced shift of the resonance frequency of an optical cavity containing the ensemble. This work extends the range of cavity-based detection with single-atom resolution by more than an order of magnitude in atom number, and provides the readout capability necessary for Heisenberg-limited interferometry with atomic ensembles.
Keywords
Cite
@article{arxiv.1203.3160,
title = {Collective state measurement of mesoscopic ensembles with single-atom resolution},
author = {Hao Zhang and Robert McConnell and Senka Ćuk and Qian Lin and Monika H. Schleier-Smith and Ian D. Leroux and Vladan Vuletić},
journal= {arXiv preprint arXiv:1203.3160},
year = {2015}
}
Comments
5 pages, 4 pdf figures