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May
4
awarded  Nice Question
May
4
awarded  Nice Answer
Jan
2
comment General Relativity research and QFT in curved spacetime
@Kyle: That's also an interesting subject, but I meant this type of things: arxiv.org/abs/0905.4352
Dec
29
answered General Relativity research and QFT in curved spacetime
Dec
29
comment Wilson/Polyakov loops in Weinberg's QFT books
I don't know if it's in it or not (look for "area law" or "confinement" in it). Note that you and I may think this topic as classic, but I guess it can be too modern a topic for him. Anyway, just stop regarding his book as sacred.
Dec
28
answered Wilson/Polyakov loops in Weinberg's QFT books
Dec
10
asked On the Coulomb branch of N=2 supersymmetric gauge theory
Nov
19
comment “finite” QFTs and short-distance singularities and vanishing beta functions
@Anirbit , even in free field theory there's a loop integral which diverges: i.e. a one-loop diagram without any vertex. This corresponds to the zero-point energy of free oscillators, which makes the partition function diverge in the UV. So, your points 1,2,3 already apply to the theory of one free boson, and are always there.
Nov
18
comment “finite” QFTs and short-distance singularities and vanishing beta functions
Please rephrase your question. Even a theory of free bosons $\phi$ has a short distance singularity in its two-point function $\langle \phi(x)\phi(y)\rangle$.
Nov
3
comment How to prove quantum N=4 Super-Yang-Mills is superconformal?
Your argument is definitely nicer :)
Oct
28
comment Miura transform for W-algebras of exceptional type
By improving the program now the expression is about ~0.9MB :)
Oct
27
comment Miura transform for W-algebras of exceptional type
Thanks, I managed to get the generators. The degree-9 one was not so bad; but the degree-12 one, when dumped to a file, has ~ 100MB as an expression. Oh Buddha.
Oct
27
answered How to prove quantum N=4 Super-Yang-Mills is superconformal?
Oct
26
comment Miura transform for W-algebras of exceptional type
Thanks everyone; I know got the generators at degree 2 and 5. Now I need those at degree 6, 8, 9 and 12 :p
Oct
26
comment Miura transform for W-algebras of exceptional type
Yes you're right. Physicists cover their lack of deep thinking by lots of explicit calculation:p I've been using that approach to find generators of W(E6), but that's still quite messy. That's why I asked the question here.
Oct
26
comment Miura transform for W-algebras of exceptional type
Thank you, but my main problem is to explicitly write down the subalgebra commuting with the screening operators. For A and D, it's done by Fateev-Zamolodchikov and Fateev-Lukyanov. Their forms are quite useful because it can be readily implemented in a computer algebra system. I just want to perform a few stupid calculation inside W-algebra of type E6, but I first need to realize it inside computer.
Oct
25
asked Miura transform for W-algebras of exceptional type
Oct
23
comment Paper listing known Seiberg-dual pairs of N=1 gauge theories
Ah, I see. Then I'll award him the bounty, but I don't accept his answer!
Oct
23
comment Paper listing known Seiberg-dual pairs of N=1 gauge theories
I agree. I think Urs deserves many points anyway through his contribution to tp.se at large, so I "accept" his answer :)
Oct
23
comment Paper listing known Seiberg-dual pairs of N=1 gauge theories
@Joe I knew that the list doesn't exist in the literature, that's why I asked here :p I learned that I should've asked this question after the tp.se community grew up more.