Sensitivity enhancement by mode entanglement in distributed phase sensing

Authors :: Johannes Borregard
Shuro Izumi
Jonas S. Neergaard-Nielsen
Ulrik L. Andersen
Casper R. Breum
Xueshi Guo
Mikkel V. Larsen
Source :: Quantum Information and Measurement (QIM) V: Quantum Technologies.
Publication Year :: 2019
Publisher :: OSA, 2019.
Abstract: 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.

Subjects :: Physics
Photon
business.industry
Phase (waves)
Quantum metrology
Mode (statistics)
Optoelectronics
Quantum Physics
Quantum entanglement
Sensitivity (control systems)
Quantum key distribution
business
Squeezed coherent state

Database :: OpenAIRE
Journal :: Quantum Information and Measurement (QIM) V: Quantum Technologies
Accession number :: edsair.doi...........b3d0b637d8da6c6d6200091b9c166d45

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