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

We investigated the quantum state of an optomechanical suspended mirror undercontinuous measurement and feedback control using Wiener filtering. We focus onthe impact of the two-mode theory of suspended mirror on the quantum state,which is described by the pendulum and rotational modes. It is derived from thebeam model coupled to the cavity light in the low-frequency regime, includingthe internal friction of the beam and the finite size effect of the mirror. Weconstructed a Wiener filter for the two-mode theory and predicted the quantumstate by evaluating the conditional covariance matrix using Wiener filteranalysis. The results demonstrate that multimode analysis may play an importantrole in generating the quantum squeezed state. We also point out thepossibility that one-mode analysis can be a good approximation by choosing therange of the Fourier space in the Wiener filter analysis.

Quantum state of a suspended mirror coupled to cavity light -- Wiener filter analysis of the pendulum and rotational modes