Quantum-Enhanced Fiber-Optic Gyroscopes Using Quadrature Squeezing and Continuous-Variable Entanglement
AffiliationUniv Arizona, James C Wyant Coll Opt Sci
Univ Arizona, Dept Elect & Comp Engn
MetadataShow full item record
PublisherAMER PHYSICAL SOC
CitationGrace, M. R., Gagatsos, C. N., Zhuang, Q., & Guha, S. (2020). Quantum-enhanced fiber-optic gyroscopes using quadrature squeezing and continuous-variable entanglement. Physical Review Applied, 14(3), 034065.
JournalPHYSICAL REVIEW APPLIED
Rights© 2020 American Physical Society
Collection InformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at firstname.lastname@example.org.
AbstractWe evaluate the fundamental performance of a fiber-optic gyroscope (FOG) design that is enhanced by the injection of a quantum-optical squeezed vacuum. In the presence of fiber loss, we compute the optimum attainable enhancement below the standard quantum limit in terms of the angular velocity estimator variance from a homodyne measurement. We find that currently realizable amounts of single-mode squeezing are sufficient to access the maximum quantitative improvement, but that this gain in maximum rotation sensitivity is limited to a marginal constant factor. We then propose an entanglement-enhanced FOG design that segments a fixed amount of available fiber into multiple fiber interferometers and feeds this sensor array with a multimode-entangled squeezed vacuum resource. Our design raises the fundamental improvement in sensitivity to an appreciable factor of e approximate to 2.718.
VersionFinal published version
SponsorsOffice of Naval Research