Scattering Amplitudes and the Positive Grassmannian · HackerPapers discussions

Scattering Amplitudes and the Positive Grassmannian — mentioned by MaysonL

Sat, 24 Sep 2016 01:30:27 GMT

One paper at: http://arxiv.org/abs/1212.5605

Paper and discussion history. A mention is not an endorsement.

Scattering Amplitudes and the Positive Grassmannian — mentioned by beefman

Tue, 12 Jul 2016 19:32:29 GMT

I followed all the links in this article and watched Alexander's TEDx talk. The only "link" I could find is a rather loose one, mentioned at the end of the TEDx talk[1]. A cyclic ('big bounce') cosmology is proposed as a solution to the fine-tuning problem, and this is likened to a jazz soloist trying different things over a repeated chord progression. The associated paper[2] doesn't mention jazz or music. Perhaps a tighter crossover between physics and music lies in the use of Grassmann algebra to study both scattering amplitudes[3] and musical scales[4][5]. [1]…

Paper and discussion history. A mention is not an endorsement.

Scattering Amplitudes and the Positive Grassmannian — mentioned by mrcactu5

Wed, 18 Sep 2013 15:24:18 GMT

Nima Arkani-Hamed is a nortorious loudmouth. I went to his lecture from 1-3 and we got an encore from 3-5 and another from 5-6. It is no surprise his paper is verbose clocking at 154 pages. Scattering Amplitudes and the Positive Grassmannian http://arxiv.org/abs/1212.5605 Alejandro Morales has some lecture notes on a course on the Positive Grassmanian The professor was Alexander Postnikov at MIT. http://www.thales.math.uqam.ca/~ahmorales/18.318lecs/lecture... Feynman famously said "I think I can safely say that nobody understands quantum mechanics." That was in 1965 but it's still true. The…

Paper and discussion history. A mention is not an endorsement.

Scattering Amplitudes and the Positive Grassmannian — mentioned by bsullivan01

Wed, 18 Sep 2013 15:05:50 GMT

Why aren't you asking them for their qualifications, then? Don't need to, checked them as they posted their names and all their research is online. http://arxiv.org/abs/1212.5605 They also posted the math behind it (which went over my head) unlike you. Next time, if you want to be taken seriously explain yourself better and try to be specific. If you know what you are talking about, of course.

Paper and discussion history. A mention is not an endorsement.

Scattering Amplitudes and the Positive Grassmannian — mentioned by Sniffnoy

Wed, 18 Sep 2013 09:08:52 GMT

A note -- when linking to arXiv, please link to the abstract[1], not directly to the PDF. The abstract has other information about the paper, and one can see different versions of the paper, and of course one can click through to the actual paper. Going the other way requires manually editing the URL. [1]http://arxiv.org/abs/1212.5605v1

Paper and discussion history. A mention is not an endorsement.

Scattering Amplitudes and the Positive Grassmannian — mentioned by freyrs3

Wed, 18 Sep 2013 05:35:23 GMT

The paper from the arxiv mentioned in the article: http://arxiv.org/pdf/1212.5605v1.pdf

Paper and discussion history. A mention is not an endorsement.