English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

White-light interferometry is one of today's most precise tools fordetermining optical material properties. Achievable precision and accuracy aretypically limited by systematic errors due to a high number of interdependentdata fitting parameters. Here, we introduce spectrally-resolved quantumwhite-light interferometry as a novel tool for optical property measurements,notably chromatic dispersion in optical fibres. By exploiting both spectral andphoton-number correlations of energy-time entangled photon pairs, the number offitting parameters is significantly reduced which eliminates systematic errorsand leads to an absolute determination of the material parameter. By comparingthe quantum method to state-of-the-art approaches, we demonstrate the quantumadvantage through 2.4 times better measurement precision, despite involving 62times less photons. The improved results are due to conceptual advantagesenabled by quantum optics which are likely to define new standards inexperimental methods for characterising optical materials.

Quantum enhancement of accuracy and precision in optical interferometry