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1:54 AM
@Mithrandir24601 So this is where I'm at. I'm understand when glS says "don't really understand the need of a "way out". The scope of the result is as general as it gets. It holds at any point in time. You can apply it immediately after a measurement, the only caveat is that the post-measurement result will be different then the state before measurement, and therefore the quantities (averages and variances) will be different ..."
Taken from the original joshphysics derivation's comment section:
joshphysics any idea what the error term involved in the approximation might be?
MoreAnonymous That's a great question that I've never considered oddly enough (probably because I've never really used this in practice, but only as a conceptual tool for understanding the implications of quantum mechanics). I'm curious though now, and if I find something, I'll let you know.
There is a paper that might discuss this called "Mathematical analysis of the Mandelstam–Tamm time-energy uncertainty principle" by Gray and Vogt, but I haven't read it in detail, so I'm not sure at the moment.
 
 
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11:45 AM
@Mithrandir24601 :O
 
 
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7:41 PM
posted on September 20, 2019 by Scott

My vision is blurry right now, because yesterday I had a procedure called corneal cross-linking, intended to prevent further deterioration of my eyes as I get older. But I can see clearly enough to tap out a post with random thoughts about the world. I’m happy that the Netanyahu era might finally be ending in […]

 

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