I want to eventually work in string theory and QFT integrability. I did my Bachelor at the top university in my country, and wrote a research level paper as my final project (wasn't published, but the results were non-trivial). My supervisor was a pretty big name in the field as were two other...
Easiest to most difficult;
1. Every book that isn't Weinberg.
2. Weinberg.
But seriously, difficulty is a relative concept. Are you talking just about intro QFT? Otherwise you could include books on N=4 SYM and curved space QFT which are obviously much more advanced than introductory topics...
I'm looking to start learning N=4 SYM. I know QFT at the level of the first two sections of Peskin and Schroeder, up the the renormalization group stuff. I don't know any Yang Mills or Supersymmetry. What is the best place to begin? Looking for books or arxiv notes.
Thanks
Homework Statement
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The Lagrangian ##\mathcal{L}\frac{1}{2}(\partial_\mu\phi^\nu)^2+\frac{1}{2}(\partial_\mu\phi^\mu)^2+\frac{m^2}{2}(\phi_\mu\phi^\mu)^2## for the vector field ##\phi^\mu## is not invariant with respect to the gauge transformation ##\phi^\mu\rightarrow...
I'm in the UK system and will probably graduate with a high 2:1, missing out on a First Class Honours due to mediocre grades in my early years due to burnout and lack of interest. However, the grades in the areas I'm interested in are quite good - high first class honours grades in each one, and...
Homework Statement
Consider left-handed fermions in two spacetime dimensions ##(t,x)##: ##\psi_L=\frac{1}{2}(1-\gamma_5)\psi_D## with ##J_0^\epsilon(t,x)=\psi_L^+(x+\epsilon)\psi_L(x-\epsilon)##.
(a). Use canonical equal-time anti-commutation relations for fermions to compute...
I was reading a paper which featured the following horrendous integral
##\displaystyle\prod_{n=1}^L\oint_{C_n}\frac{dx_n}{2\pi i}\prod_{k<l}^L(x_k-x_l)\prod_{m=1}^L\frac{Q_w(x_m)}{Q^+_\theta(x_m)Q^-_\theta(x_m)}##
where ##Q^\pm_\theta(x)=\prod_{k=1}^L(u-\theta_k\pm \frac{i}{2})## and...
Ahh right okay. But how would the ##i\epsilon## terms be included then? I'm guessing since they're infinitesimal we can just put them in?
Is my amplitude for the first diagram in my last post correct?
Figured there was no point creating a new thread.
Anyway, I want to evaluate the following diagram in momentum space.
Using the Feynman rules and what I've learned from the previous problem I would expect to get...
I'm looking to start learning the basics of AdS/CFT, in particular AdS/CFT integrability, over the summer before I start grad school. By the time I finish my undergrad I will have a good background in QFT (first 12 chapters of Peskin & Schroeder), GR (Sean Carroll's notes and Wald), quantum...