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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Synthetic optical structures have enabled studies of various physicalprocesses and discoveries of new phenomena in a controllable manner. Pastrealizations, using for example coupled optical waveguides, were howeverlimited in size and dimensionality. Here we theoretically propose andexperimentally demonstrate optical frequency crystals of arbitrary dimensions,formed by hundreds of coupled spectral modes within an on-chip electro-opticfrequency comb. We show a direct link between the measured optical transmissionspectrum and the density-of-state of frequency crystals, validated bymeasurements of one-, two-, three- and four-dimensional crystals with norestrictions to further expand the dimensionality. We measure signatures ofquantum random walks and Bloch oscillations in the frequency domain of light inone- and two-dimensional synthetic lattices. Our work employs a quantumdescription of phase modulation11 to describe resonant electro-optic frequencycombs, and shows that they enable the study of exotic crystal properties,topologies and quantum dynamics, while providing a versatile platform tomanipulate quantum information in the optical frequency domain.

High-dimensional frequency crystals and quantum walks in electro-optic microcombs