Recent content by Atakor

the gauge bosons of SU(2) are W+/- and Z, that is : 3. which is equal to the dimension of SU(2).. the photon comes from the U(1) part of the Standard model. your "formula" works only for SU(3), because : N^2-1 = 2^N, for N=3... and ONLY N=3. ps. su(2) gives only the isospin charge..

Hi, The answer is no for both questions. 3 Charges: because the quarks are in the triplet representation of SU(3) 8 Gluons : because the gauge bosons are in the adjoint representation, that has dimension 8. These two numbers (3 and 8) are not a priori related to each other, as you can put...

this is located in the most beautiful city of the world... Toledo.

Roma.

Ah, sorry.. didn't know about this because I've taken it directly from the camera like that (not manually post-processed)...like B&W or Sepia tones.. Sorry.

Big Smile of gratitude and generosity..even during dark times. Happy Thanksgiving to all the americans of this site in particular.

Thanks for the link Fra, I'll try to check that out. I don't understand what you mean with your "four no's". anyway.. the flow of time seem to stop also for some systems that are in constant interaction with the environment, I mentioned earlier the quantum zeno effect for example.

I'm not sure that the physical knowledge has really changed the way humans act..but I got now your point about evolving laws. However, I immediately see a problem in this view. Indeed, those evolving laws will change according to a certain 'order' right ? at least if you're not considering...

SR was just an example of course, I meant a theory that relates observables by certain invariant links or relations. by essence those relations must involve more than one observer to be discovered (to get rid of subjectivity and extract the invariance) which leads us back to the conventional...

Quantum mechanics itself (as a theory) plays the role of the external description.. or does it ? Special Relativity doesn't tell us the momenta and energies of all the particles, but gives invariant descriptions that we can use for each observer-dependent -subjective- case. Finally I think your...

thanks, but from a purely group-theory or physical point of view..how do you explain it ?

Hello, nice presentation xepma ! Any reference with this geometrical 'interpretation' of gauge theories please ? something troubles me, do gauge bosons necessarily belong to the adjoint representation ?

valentini has a maverick career.. because of his non-main-stream interests (foundatioons of QM) he could not get any position after his phd (although his advisor was Sciama) but after some 10 years of being outside academia Smolin gave him a postdoc at perimeter. He's now 'somewhere'.. His...

and Another one from the Golden Gate.. (I have almost the same as yours chroot !)..sorry I don't know any other place with mist.

I think one cannot really be convinced by mathematical or physical analogies for that. The fact is that it just works ! and we don't know 'why'. Now to see any logic in this is for me an a posteriori reasoning, which is not really deep. The analogy with scattering of waves and interference...