Posted on 09/15/2018 2:10:37 AM PDT by LibWhacker
I was unaware of any theory that postulates more than three space dimensions. Even the 12 dimensional Heim Extended Quantum Field Theory has only three space dimensions. The rest are time-like.
Just as well. Humans havent figured out how to live properly in the four dimensions we already got.
A press conference has been called for later this coming week at the Baxter Building. Richards is also expected to elaborate on his recent remarks that Annihilus is a graver threat to Earth than climate change.
...Gravitational waves provide dose of reality about extra dimensions (there aren’t any)...
But, what about the other one liberals live in?
This is nine miles over my head, so I’m not pretending to understand it. But I looked it up and, if I got it right, “Bosonic” string theory, which is an early version of string theory, postulated 25 spatial dimensions and one time, and though not in favor, is still being studied.
Wouldn’t this be a blow for string theory and the multiverse?
The major difference between the two is that astronomers could see the aftermath of the neutron star collision with a conventional telescope, producing two readings that can be compared: one in gravity, and one in electromagnetic (light) waves.
“This is the very first time we’ve been able to detect sources simultaneously in both gravitational and light waves,” said Prof. Daniel Holz. “This provides an entirely new and exciting probe, and we’ve been learning all sorts of interesting things about the universe.”
...
It’s one of the greatest accomplishments of humanity.
Too bad John Wheeler didn’t live long enough to see it.
Yes, you would certainly think so.
Personally, I’m disappointed since I’m a big fan of the multiverse
Here’s a link to the paper:
https://arxiv.org/abs/1801.08160
It says the dimensions considered are non-compact, so perhaps this isn’t a blow for string theory.
I can’t say that since that would imply i understand it, which I don’t. But I can and do say, “DOH!”
We stress that our results do not hold for extradimensional theories with compact extra dimensions (e.g. string theory or the ADD model). The extra dimensions need to be at least on the order of the wavelength of the gravitational waves (∼ 100 km) in orderto have a damping effect. In addition, there may be complications for theories with larger extra dimensions.
Read it, thanks.
Good point about the dimensions. Completely missed it in my reading.
Do you get run-on text in arXiv papers and abstracts, particularly where they change fonts? I get that no matter which device I’m on: PC, Mac, Kindle, smart phone, doesn’t matter.
The multiverse just got wacked.
So does this refute brand theory, or is the relevant scale of the collapsed dimensions all wrong?
Dimensions are not a place where you can go. Dimension means measure. Like “foot” or “mile.”
It displays fine for me at the link I gave.
I downloaded the PDF for the entire paper. It all looks OK.
Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.