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  Quantum-limited time-frequency estimation through mode-selective photon measurement

Donohue, J. M., Ansari, V., Řeháček, J., Hradil, Z., Stoklasa, B., Paúr, M., et al. (2018). Quantum-limited time-frequency estimation through mode-selective photon measurement. Physical Review Letters, 121(9): 090501. doi:10.1103/PhysRevLett.121.090501.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0006-DF2F-C Version Permalink: https://hdl.handle.net/21.11116/0000-0008-D92C-3
Genre: Journal Article

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 Creators:
Donohue, John M.1, Author
Ansari, Vahid1, Author
Řeháček, Jaroslav1, Author
Hradil, Zdeněk1, Author
Stoklasa, Bohumil1, Author
Paúr, Martin1, Author
Sanchez-Soto, Luis2, Author           
Silberhorn, Christine1, Author
Affiliations:
1external, ou_persistent22              
2Quantumness, Tomography, Entanglement, and Codes, Leuchs Division, Max Planck Institute for the Science of Light, Max Planck Society, ou_2364709              

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 Abstract: By projecting onto complex optical mode profiles, it is possible to estimate arbitrarily small separations between objects with quantum-limited precision,
free of uncertainty arising from overlapping intensity profiles. Here we extend these techniques to the time-frequency domain using mode-selective sum-frequency generation with shaped ultrafast pulses. We experimentally resolve temporal and spectral separations between incoherent mixtures of
single-photon level signals ten times smaller than their optical bandwidths with a ten-fold improvement in precision over the intensity-only Cramér-Rao
bound.

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Language(s): eng - English
 Dates: 2018-05-072018-05-112018-08-27
 Publication Status: Issued
 Pages: 6
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: arXiv: 1805.02491
DOI: 10.1103/PhysRevLett.121.090501
URI: http://arxiv.org/abs/1805.02491
 Degree: -

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Title: Physical Review Letters
  Abbreviation : Phys. Rev. Lett.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Physical Society
Pages: 6 Volume / Issue: 121 (9) Sequence Number: 090501 Start / End Page: - Identifier: ISSN: 0031-9007
CoNE: https://pure.mpg.de/cone/journals/resource/954925433406_1