tag:blogger.com,1999:blog-7315236707728759521.post7871230754775822491..comments2023-09-23T21:58:39.252-06:00Comments on Dispatches From Turtle Island: Selected 2019 Particle Data Group Physical Constant ValuesAndrew Oh-Willekehttp://www.blogger.com/profile/02537151821869153861noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-7315236707728759521.post-52586695946355109052020-02-14T18:10:12.092-07:002020-02-14T18:10:12.092-07:00FWIW, in my humble opinion, the two are not, in fa...FWIW, in my humble opinion, the two are not, in fact, exactly equivalent, although a spin-2 boson of QFT in the classical limit, is approximately equivalent to GR in 4D.<br /><br />For example, generically, in a QFT where a force is transmitted via a carrier boson, the energy associated with the force can be localized subject to the limitation of the Heisenberg uncertainty principle, which is not true in classical GR. Similarly, the QFT has both local and global conservation of mass-energy which is inconsistent with the cosmological constant. GR conserves mass-energy only locally, and not globally.andrewhttps://www.blogger.com/profile/08172964121659914379noreply@blogger.comtag:blogger.com,1999:blog-7315236707728759521.post-16971339800100700632020-02-09T10:47:01.854-07:002020-02-09T10:47:01.854-07:00This is not a short or simple question, although t...This is not a short or simple question, although the leading textbooks in GR contain derivations of their analysis. Worthy of a full post, at a minimum.andrewhttps://www.blogger.com/profile/08172964121659914379noreply@blogger.comtag:blogger.com,1999:blog-7315236707728759521.post-20371376581282773372020-02-07T21:36:09.889-07:002020-02-07T21:36:09.889-07:00i'm unclear how gravity in GR as 4D spacetime ...i'm unclear how gravity in GR as 4D spacetime can be represnted as a spin-2 boson of QFT<br /><br />2 seemingly different categoriesneohttps://www.blogger.com/profile/16769182614452171312noreply@blogger.com