Physicists propose test for loop quantum gravity
physorg.com
physorg.com
With regards to the actual feasibility of such a test, let me say this: It's taken us about half a century to "probably" identify a couple of black holes. Trying to find a few that were created early enough to be evaporating now and then observing their radiation signature seems to be an extremely long shot. The article also claims that the method needs "enough" black holes, which I'm guessing is more than a few. We're talking of things which occur on astronomical time scales. Since our current technology lets us look only in our near neighbourhood (in space and time) i.e. not too far away and not too far back in time, we need to be extremely lucky to be able to verify that claim. And that would be an understatement.
PS: Hawking radiation is a semi-classical calculation of how black holes must radiate. So pretty much everybody working in related areas knows that the exact radiation observed will be slightly different due to corrections coming from "quantum mechanics done right". That's nothing new. This paper gives one such scheme of corrections and claims that this is a distinguishing feature of loop quantum gravity. (As stated in the article; I can't verify that claim)
As a hacker, a story that says "scientist invents/discovers new thing" is completely uninteresting to me unless it actually makes an effort to explain the new thing. If it does little more than state the discovery/invention, it's news, not science, and can't teach me anything.
Most of the time when I read the comments of physics articles like this, it's to find criticism that I myself have no chance in hell of producing.