PeterDonis's latest activity

Michelson interferometers, Mach-Zehnder interferometers (and also the double slit) measure field correlations. The quantity you measure...

Correct. Both of them are interferometers, yes. What gets observed at any detector depends on the relative amplitude and phase of the...

Both of them have one source, which gets split by a beam splitter into two beams. Just as I described in post #4.

No, but it was part of the specific scenario we were discussing as I understood it. Yes, that's correct. See my discussion with...

In the general sense of "stress", which in relativity means "the components of the stress-energy tensor", yes, I agree. I should have...

Yes. You have one light beam coming from a source, which is split by a beam splitter, and then you have two detectors, and you look for...

It would help if you would give specific references for where you read or were told these things.

A single Stern-Gerlach experiment is not a "correlation experiment". To do a correlation experiment with Stern-Gerlach devices, you need...

The structure would have to be narrow enough for the variation in ##r## for a transverse beam to be negligible. Otherwise its proper...

No, that's not the claim that was made. Here's the claim that was made: The beam is supposed to be held static against gravity in...

I hadn't looked at it in detail because I was focusing on the first part and wanting to understand it. Having now looked at it, I'm not...

You don't seem to understand that the proper acceleration is determined by the beam's worldline. You can't adjust it by applying...

It occurred to me after posting #116 that by "local density" you might have meant something more like "local proper number density of...

I'm not sure you can do that. If you build the object in flat spacetime in an unstressed state, and then move it to hovering statically...

Depends on what you're trying to show. What I was trying to show is that I can take a rod built in flat spacetime with proper length...