tag:blogger.com,1999:blog-8666091.post114488828567066388..comments2021-06-11T20:12:08.082+02:00Comments on The Reference Frame: Flux compactifications of M-theory and F-theoryLuboš Motlhttp://www.blogger.com/profile/17487263983247488359noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-8666091.post-1144922869807851962006-04-13T12:07:00.000+02:002006-04-13T12:07:00.000+02:00Dear Lubos,thank you very much for this lucid deli...Dear Lubos,<BR/>thank you very much for this lucid delineation.<BR/><BR/>"Cumrun gave the students a homework problem to show that the usual wisdom:<BR/>there are no exactly stable non-supersymmetric configurations in string theory<BR/>is flawed"<BR/><BR/>Nonperturbative physics imposes to integrate over moduli space of the wrapping instanton -- notwithstanding it is infeasible because of Cantorian blossom of the octonionic vacuum tree where every bloom is one from the elements of the U-dual modular group. <BR/><BR/>There are uncountable many landscape decay channels (viz structure of the Weyl fundamental chambers) -- so the generic nonSUSY vacua do not have moduli space.<BR/><BR/>An irreducible representation of the U-dual root lattice is the multi-flux warped octonionic black hole throat which equal to 0 (= Z_top = O matrix valued Hagedorn tachyon = off schell duality cascade = infinite-order orbifold of the generalized conifold).<BR/><BR/>Ergo, dear Lubos, I conjecture that Cumrun's homework is imperfect ;-)<BR/><BR/>Salute, Planckeonplanckeonhttps://www.blogger.com/profile/04353112466237007196noreply@blogger.com