elvum: (Default)
elvum ([personal profile] elvum) wrote2007-11-16 12:06 am

(no subject)

Any fans out there of theories of everything?

I've never been good enough at HEP theory to do more than skim this stuff, but I particularly liked the end of section 5: "The theory has no free parameters. The coupling constants are unified at high energy, and the cosmological constant and masses arise from the vacuum expectation values of the various Higgs fields..." - the guy is simply reeling off desirable features from the GUT ticklist.

I eagerly await the results of some peer review, and about a decade of LHC running. :-)

[identity profile] elvum.livejournal.com 2007-11-16 12:45 pm (UTC)(link)
For certain values of "help"... :-)

It was certainly informative and explanatory, and I thank you.

[identity profile] pozorvlak.livejournal.com 2007-11-16 12:51 pm (UTC)(link)
Cool.

I don't entirely understand how to interpret the diagrams, but roughly, every vertex corresponds to a copy of sl2, and the number of edges between two vertices tells you how to multiply elements from those copies of sl2 together.