Collective State Measurement of Mesoscopic Ensembles with Single-Atom Resolution
Name
Zhang-2012-Collective State Measurement of Mesoscopic Ensembles.pdf
Size
350.76 KB
Format
Adobe PDF
Checksum (MD5)
84b34fc8b626743e3b328b5f6be96f78
Author(s)
Zhang, Hao
McConnell, Robert P.
Cuk, Senka
Schleier-Smith, Monika H.
Leroux, Ian Daniel
Vuletic, Vladan
Lin, Qian, Ph. D. Massachusetts Institute of Technology
Date Issued
September 2012
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Zhang, Hao et al. “Collective State Measurement of Mesoscopic Ensembles with Single-Atom Resolution.” Physical Review Letters 109.13 (2012).
Version
Final published version
Abstract
We demonstrate single-atom resolution, as well as detection sensitivity more than 20 dB below the quantum projection noise limit, for hyperfine-state-selective measurements on mesoscopic ensembles containing 100 or more atoms. The measurement detects the atom-induced shift of the resonance frequency of an optical cavity containing the ensemble. While spatially varying coupling of atoms to the cavity prevents the direct observation of a quantized signal, the demonstrated measurement resolution provides the readout capability necessary for atomic interferometry substantially below the standard quantum limit and down to the Heisenberg limit.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Research Laboratory of Electronics
MIT-Harvard Center for Ultracold Atoms
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PhysRevLett.109.133603
