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Conference paper

Sensitivity enhancement by mode entanglement in distributed phase sensing

In Proceedings Quantum Information and Measurement (qim) V — 2019

By Guo, Xueshi1,2; Borregard, Johannes3; Breum, Casper Rubæk1,2; Izumi, Shuro2; Larsen, Mikkel Vilsbøll1,2; Neergaard-Nielsen, Jonas Schou1,2; Andersen, Ulrik Lund1,2

From

Quantum Physics and Information Technology, Department of Physics, Technical University of Denmark1

Department of Physics, Technical University of Denmark2

University of Copenhagen3

Center for Macroscopic Quantum States, Department of Physics, Technical University of Denmark4

We investigate the sensitivity of distributed phase sensing with squeezed state probes. By creating mode entanglement between probes with a beam-splitter network, sensitivity enhancement over independent probes is observed experimentally for the first time.

Language: English
Publisher: Optical Society of America (OSA)
Year: 2019
Proceedings: Quantum Information and Measurement
Journal subtitle: Quantum Technologies
ISBN: 1943580561 and 9781943580569
Types: Conference paper
DOI: 10.1364/QIM.2019.S4A.4
ORCIDs: Breum, Casper Rubæk , Larsen, Mikkel Vilsbøll , Neergaard-Nielsen, Jonas Schou and Andersen, Ulrik Lund

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