Found a match!
How do you find very small gravitational-wave signals in the ocean of background noise that’s always present in our LIGO detectors? We use a technique called matched filtering, originally developed in the early 40s to optimize detections in radars and sonars. The idea is that your search is a lot more sensitive if you know…
Measuring the Hubble Constant
One of the biggest open questions in modern science: how fast is the universe expanding? We’ve known since the early 1900s that the universe is expanding, and even since we have developed more and more precise methods to measure how fast. So precise that for many years now the two main methods used today -…
Getting ready
Discover what new components have been installed in LIGO to get ready for the next science run
Quantum Squeezing
“Any sufficiently advanced technology is indistinguishable from magic,” Arthur C. Clarke I think about this quote everytime I look into the quantum vacuum squeezing system used in LIGO to increase its sensitivity! So what is this quantum squeezing technology used in LIGO? It’s a way to trick Heisenberg’s uncertainty principle, and make sure that the…
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