Emily Adlam
speaker
1,263 appearances
3 recordings
1 series
first heard Apr 2025
last heard 20 Jul
Emily Adlam’s voice in public audio — every appearance, attributed to the second.
Trend
recordings per month · last 12 monthsRecordings per month over the last 12 months — 1 in all, peaking in Jul 2026 with 1.
Appearances
Um but the thing about fixed points is that they can occur both at very small scales and at larger scales.
Uh so it's not obvious to me that invoking fixed points particularly favors one direction of explanation since since they occur in at both levels.
That's right.
Yeah.
So we I mean we have various approximations we use to do uh renormalization, and many of those are not invertible.
Um but there are good reasons to think that the the real underlying transformations should be invertible.
Um and if that's the case, then outside of fixed points, you can go from small scales to large scales, or you can go from large scales to small scales.
It's kind of the same from the point of view of the underlying math.
And so there's no sort of obvious sense.
points in which the physics is telling you the small things must explain the big things and not vice versa.
Yeah, I I mean I think that's a great analogy, b you know, because I would say much the same about time time evolution as well, that there is no particular reason to privilege one point.
Uh certainly the physics doesn't tell you you have to do that.
And yeah, I think the same is true.
f at least for many applications of the renormalization transformation, the physics doesn't seem to be telling you that the smallest, most fundamental scales must actually be privileged in that sense.
Yeah, so uh in the context of quantum mechanics, non-locality is uh the phenomenon that quantum mechanics exhibits correlations which seem to be too strong to be explained by any local model.
So normally when we see correlations at a distance, we would expect to explain them by some common cause in the past.
You know, they both came from the same source or something like that.
Uh but Bell's theorem demonstrates that the types of correlations
we see in quantum mechanics can't be explained that way.
It seems as though there's some kind of direct influence between events happening at a distance that can't be explained in this sort of common cause way.
Showing 801–820 of 1,263 · page 41 of 64
← Previous
Next →