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

We present the experimental demonstration of the occurrence of exceptionalpoints of degeneracy (EPDs) in a single resonator by introducing a lineartime-periodic variation of one of its components, in contrast to EPDs in paritytime (PT)-symmetric systems that require two coupled resonators with precisevalues of gain and loss. In the proposed scheme, only the tuning of themodulation frequency is required that is easily achieved in electronic systems.The EPD is a point in a system parameters' space at which two or moreeigenstates coalesce, and this leads to unique properties not occurring atother non-degenerate operating points. We show theoretically and experimentallythe existence of a second order EPD in a time-varying single resonator.Furthermore, we measure the sensitivity of the proposed system to a smallstructural perturbation and show that the operation of the system at an EPDdramatically boosts its sensitivity performance to very small perturbations.Also, we show experimentally how this unique sensitivity induced by an EPD canbe used to devise new exceptionally-sensitive sensors based on a singleresonator by simply applying time modulation.

Experimental Demonstration of Exceptional Points of Degeneracy in Linear Time Periodic Systems and Exceptional Sensitivity