Exploring Double Field Theory · HackerPapers discussions

Exploring Double Field Theory — mentioned by immmmmm

Sun, 21 Jun 2026 14:39:13 GMT

from a theoretical physicist point of view, i find GA don't add much to the standard tooling ppl use, i.e. Lie algebras, Clifford and (sometimes) differential forms. while it's always nice to have a formalism that "hides indices", in most cases (for (super-)gravitation at least) just writing tensor/clifford/lie indices is just much faster and less error prone. i used to use differential form for gauge theories, einstein-cartan gravitation and ramond-ramond fields. also, in a paper, we used O(D,D) clifford algebras/spinors to represent differential forms, which worked quite well in our very…

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Exploring Double Field Theory — mentioned by immmmmm

Sat, 24 Jul 2021 19:57:40 GMT

just read the abstract, seems meh wrote two very well cited articles [1,2] on this in the context of string theory. but this was just extending kaluza klein, where by adding one compact dimensions (with some assumptions) you get maxwell out of einstein for free. this result is from 1919, 102 years old. i'm glad i can write all gravitation, electromagnetism, yang mills and string theory in two equations (1.6 in [2]]) but honestly i don't that's a breakthrough. i might be wrong, yet it smells more like PR than important discovery. btw you can as as well find solutions of GR that are dual to…

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