Where do you see -25 dBm noise floor? But chance do you mean a 25 dB SNR?
The picture here <https://scx1.b-cdn.net/csz/news/800a/2026/rydberg-atoms-dete...> though I just saw the X-axis refers to audio frequencies, kind of confusing on first glance.
That's dB not dBm, and the article says it's normalized to whatever power each of the two options received at. Nothing about absolute power.
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