tag:blogger.com,1999:blog-2846514233477399562.post4389241156040894262..comments2024-01-08T09:37:04.406+01:00Comments on RÉSONAANCES: Unitarity RulesJesterhttp://www.blogger.com/profile/08947218566941608850noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-2846514233477399562.post-49656102310157192502008-08-23T11:33:00.000+01:002008-08-23T11:33:00.000+01:00Euh. If I actually knew what that was I might agre...Euh. If I actually knew what that was I might agree.... (educate me?)<BR/><BR/>It seems *any* string theory is 'simple' for the right definition of simple :) Or in other words, almost any string theory has amazingly good UV scattering properties. If the theory you mean makes itself well-behaved (finite?) in the UV by adding infinite stacks of massive particles (I'm guessing), than it will probably have similar properties, although making this precise might be hard. Any string theory is in some limit after all a quantum field theory with an infinite number of massive fields. <BR/><BR/>All of this doesn't mean of course that the Arkani-Hamed-Cachazo-Kaplan paper isn't very interesting...Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2846514233477399562.post-33798042164634151242008-08-22T17:38:00.000+01:002008-08-22T17:38:00.000+01:00rutger, do you mean old Dirac multiparameter multi...rutger, do you mean old Dirac multiparameter multiparticle theory? Or a more modern string theory :-D ?Alejandro Riverohttps://www.blogger.com/profile/16181521111080562335noreply@blogger.comtag:blogger.com,1999:blog-2846514233477399562.post-31886740645798787482008-08-22T11:24:00.000+01:002008-08-22T11:24:00.000+01:00Okay, I can't resist some shameless self-promotion...Okay, I can't resist some shameless self-promotion to tack on this nice review post: just this week (0808.2598 hep-th) we showed that one possible 'dual' formulation of the field theory is just plain old string theory: this is therefore the 'simplest' quantum field theory :)Anonymousnoreply@blogger.com