Hacker Newsnew | past | comments | ask | show | jobs | submitlogin

Where can I find out more about how thermal effects in the LIGO optics are controlled for?

Basically, I want to understand how it's possible to measure a distance change on the femtometer scale.



You probably want to read about their active isolation measures. Then you should find anything by Vladimir Braginsky you can get your hands on. This is a good start: http://www.amazon.com/Quantum-Measurement-Vladimir-B-Bragins...


More accessible / concise info on the vibration isolation, here: https://news.ycombinator.com/item?id=11084282


Great! Thanks. My local university has this.




Consider applying for YC's Fall 2026 batch! Applications are open till July 27.

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: