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  Reduction of Classical Measurement Noise via Quantum-Dense Metrology

Ast, M., Steinlechner, S., & Schnabel, R. (2016). Reduction of Classical Measurement Noise via Quantum-Dense Metrology. Physical Review Letters, 117: 180801. doi:10.1103/PhysRevLett.117.180801.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-3E4E-7 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-3EE8-9
Genre: Journal Article

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1607.00130.pdf (Preprint), 836KB
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 Creators:
Ast, Melanie1, Author              
Steinlechner, Sebastian1, Author              
Schnabel, Roman1, Author              
Affiliations:
1Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, escidoc:24010              

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Free keywords: Quantum Physics, quant-ph
 Abstract: Quantum-dense metrology (QDM) constitutes a special case of quantum metrology in which two orthogonal phase space projections of a signal are simultaneously sensed beyond the shot noise limit. Previously it was shown that the additional sensing channel that is provided by QDM contains information that can be used to identify and to discard corrupted segments from the measurement data. Here, we demonstrate a proof-of-principle experiment in which this information is used for improving the sensitivity without discarding any measurement segments. Our measurement reached sub-shot-noise performance although initially strong classical noise polluted the data.

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 Dates: 2016-07-012016
 Publication Status: Published in print
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 Rev. Method: -
 Identifiers: arXiv: 1607.00130
DOI: 10.1103/PhysRevLett.117.180801
URI: http://arxiv.org/abs/1607.00130
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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: - Volume / Issue: 117 Sequence Number: 180801 Start / End Page: - Identifier: ISSN: 0031-9007
CoNE: http://pubman.mpdl.mpg.de/cone/journals/resource/954925433406_1