[ExI] LIGO surpasses the quantum limit

[BillK]

Researchers achieve a landmark in quantum squeezing.
Whitney Clavin      Publication Date: October 23, 2023

<https://news.mit.edu/2023/ligo-surpasses-quantum-limit-1023>
Quote:
As incomprehensibly small as these measurements are, LIGO’s precision
has continued to be limited by the laws of quantum physics. At very
tiny, subatomic scales, empty space is filled with a faint crackling
of quantum noise, which interferes with LIGO's measurements and
restricts how sensitive the observatory can be. Now, writing in the
journal Physical Review X, LIGO researchers report a significant
advance in a quantum technology called “squeezing” that allows them to
skirt around this limit and measure undulations in space-time across
the entire range of gravitational frequencies detected by LIGO.
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Amazing science!

BillK