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

For cavity-assisted optomechanical cooling experiments, it has been shown inthe literature that the cavity bandwidth needs to be smaller than themechanical frequency in order to achieve the quantum ground state of themechanical oscillator, which is the so-called resolved-sideband or good-cavitylimit. We provide a new but physically equivalent insight into the origin ofsuch a limit: that is information loss due to a finite cavity bandwidth. Withan optimal feedback control to recover those information, we can surpass theresolved-sideband limit and achieve the quantum ground state. Interestingly,recovering those information can also significantly enhance the optomechanicalentanglement. Especially when the environmental temperature is high, theentanglement will either exist or vanish critically depending on whetherinformation is recovered or not, which is a vivid example of a quantum eraser.

Achieving ground state and enhancing entanglement by recovering information