Not likely. But did you wonder why the observation is 400 zs at beta = 0 rather than 273 zs? Bond length is a high precision observable, so what is going on with the difference of ~ 100zs? Is the photon doing annihilation and recreation? Is it taking a non-linear path? Can it be explained in terms of spin networks? Unfortunately 100zs is not enough time for even one joke, so the explanation that the photon stopped briefly to perform a comedy routine with the first electron does not make physical sense. --Brad On Tue, Oct 20, 2020 at 10:04 AM James Propp <jamespropp@gmail.com> wrote:
I think the picosecond and zeptosecond should be renamed the chicosecond and the zepposecond respectively. I'm not sure how the harposecond and grouchosecond should be defined though.
Jim Propp
On Tue, Oct 20, 2020 at 1:32 AM Brad Klee <bradklee@gmail.com> wrote:
The error was quoted at about 20%, see:
https://arxiv.org/pdf/2010.08298.pdf
The yahoo article might have mentioned that 247 zs is just the bond length divided by speed of light.
I wouldn’t compare it to a laser pulse shaping, but anyways it’s impressive if they can resolve spatial orientation of a molecule. Most people don’t have equipment like that.
—Brad
On Oct 19, 2020, at 9:38 PM, Dan Asimov <dasimov@earthlink.net> wrote:
----- Zepto = 10^-21. A single photon ejected the two electrons from a hydrogen molecule. The time interval between the ejections was 247 zs, more or less depending on the orientation of the molecule.
https://news.yahoo.com/zeptosecond-femtosecond-163929049.html -----
I may be impressed when I know an upper bound for the maximum possible error. (It took me 246 zeptoseconds plus around a minute to write this post.)
—Dan
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