Chuck,
The strain sensitivity of the Advanced LIGO is currently around 10**-23. The
basis of all this is atom interferometry. Fascinating times to be around!
https://dcc.ligo.org/LIGO-P1500237/public/main
larry
On 2/14/2016 14:13 PM, Chuck Norcutt wrote:
10**-20 meter, as Dr. Mike noted, is way, way, way smaller than nano. Nano is
only 10**-9. Pico is smaller but still only 10**-12. I still can't imagine
how anyone is measuring that with lasers. UV light ranges from 10 to 400
nanometers. Much worse, even, than trying to measure the size of a virus
using a meter stick. Anyone got an explanation?
Chuck Norcutt
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