Heisenberg scaling of imaging resolution by coherent enhancement
Name
PhysRevA.96.051801.pdf
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488.64 KB
Format
Adobe PDF
Checksum (MD5)
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Author(s)
McConnell, Robert
Bruzewicz, Colin D.
Chiaverini, John
Sage, Jeremy M.
Low, Guang Hao
Yoder, Theodore James
Chuang, Isaac
Date Issued
November 2017
Journal
Physical Review A
Publisher
American Physical Society
Citation
McConnell, Robert et al. "Heisenberg scaling of imaging resolution by coherent enhancement." Physical Review A 96, 5 (November 2017): 051801(R) © 2017 American Physical Society
Version
Final published version
Abstract
Classical imaging works by scattering photons from an object to be imaged, and achieves resolution scaling as 1/√t, with t the imaging time. By contrast, the laws of quantum mechanics allow one to utilize quantum coherence to obtain imaging resolution that can scale as quickly as 1/t – the so-called “Heisenberg limit.” However, ambiguities in the obtained signal often preclude taking full advantage of this quantum enhancement, while imaging techniques designed to be unambiguous often lose this optimal Heisenberg scaling. Here we demonstrate an imaging technique which combines unambiguous detection of the target with Heisenberg scaling of the resolution. We also demonstrate a binary search algorithm which can efficiently locate a coherent target using the technique, resolving a target trapped ion to within 0.3% of the 1/e² diameter of the excitation beam.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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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.
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DOI of Published Version
https://doi.org/10.1103/PhysRevA.96.051801
