top | item 45620129 (no title) xchip | 4 months ago "Improve" means nothing unless you give a number. discuss order hn newest zokier|4 months ago straight from the abstract:> we can demonstrate quantum-amplified time-reversal spectroscopy on an optical clock transition that achieves directly measured 2.4(7) dB metrological gain and 4.0(8) dB improvement in laser noise sensitivity beyond the standard quantum limit. programjames|4 months ago That isn't a comparison to the state of the art, just a naive quantum clock.
zokier|4 months ago straight from the abstract:> we can demonstrate quantum-amplified time-reversal spectroscopy on an optical clock transition that achieves directly measured 2.4(7) dB metrological gain and 4.0(8) dB improvement in laser noise sensitivity beyond the standard quantum limit. programjames|4 months ago That isn't a comparison to the state of the art, just a naive quantum clock.
programjames|4 months ago That isn't a comparison to the state of the art, just a naive quantum clock.
zokier|4 months ago
> we can demonstrate quantum-amplified time-reversal spectroscopy on an optical clock transition that achieves directly measured 2.4(7) dB metrological gain and 4.0(8) dB improvement in laser noise sensitivity beyond the standard quantum limit.
programjames|4 months ago