Recent content by diracologia

thank you very much!

Hi Blechman, Thank for your reply. First of all, I was studying and thinking about my initial question and maybe I got the answer. May I say that R-symmetry is spontaneously broken if and only if any R-charged superfield get a non-vanishing VEV? Another question: In fact...

Spontaneously broken R-symmetry is a sufficient condition for spontaneously supersymmetry breaking. My question is: What is a spontaneously R-symmetry breaking?

Thank you all, Sam, you solve my puzzle. I just puted \partial_i and forgot that this is a differentiation only over x. Shame on me!

I have a technical question and at the time being I can't ask it to a professor. So, I'm here: If I try to quantize the vector field in the Coulomb gauge (radiation gauge) A_0(x)=0,\quad \vec\nabla\cdot\vec A=0. by imposing the equal-time commutation relation...