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

Squeezed states of light have received renewed attention due to theirapplicability to quantum-enhanced sensing. To take full advantage of theirreduced noise properties to enhance atomic-based sensors, it is necessary togenerate narrowband near or on atomic resonance single-mode squeezed states oflight. We have previously generated bright two-mode squeezed states of light,or twin beams, that can be tuned to resonance with the D1 line of $^{87}$Rbwith a non-degenerate four-wave mixing (FWM) process in a double-lambdaconfiguration in a $^{85}$Rb vapor cell. Here we report on the use offeedforward to transfer the amplitude quantum correlations present in the twinbeams to a single beam for the generation of single-mode amplitude squeezedlight. With this technique we obtain a single-mode squeezed state with asqueezing level of $-2.9\pm0.1$ dB when it is tuned off-resonance and a levelof $-2.0\pm 0.1$ dB when it is tuned on resonance with the D1 $F=2$ to $F'=2$transition of $^{87}$Rb.

Atomic Resonant Single-Mode Squeezed Light from Four-Wave Mixing through Feedforward