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visits member for 3 years, 5 months
seen Apr 17 at 9:01

As an occupation, I'm a mathematical physicist, studying string theory and quantum field theory.

I've developed as a hobby a few Cocoa (Touch) apps. The largest one so far is spires.app, which manages articles and metadata downloaded from the arXiv eprint server, the inspire database, and the journal websites.

I'm also interested in many other things, which is why I ask questions in various StackExchange sites ...


Jul
14
comment About 2+1 dimensional superconformal algebra
2) Right. 3) The author didn't say Gamma are all real, he just said sigma is real. 4) You need to understand that the matrices M are determined by j and that the metrices $I$ are detemined by h.
Jul
14
comment About 2+1 dimensional superconformal algebra
1) The right matrices to use depend on the quantum states. What you wrote down is not OK even in a single superconformal multiplet. How did you determine which matrix representations of SO(N) and SO(2,1) to use?
Jul
13
answered About 2+1 dimensional superconformal algebra
May
4
awarded  Enlightened
May
4
awarded  Nice Question
May
4
awarded  Yearling
May
4
awarded  Nice Question
May
4
awarded  Nice Question
May
4
awarded  Nice Answer
May
4
awarded  Commentator
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
16
comment On the Coulomb branch of N=2 supersymmetric gauge theory
Well, anything which was done in the last century should be considered basic. The SUSY textbook by Terning covers basic stuffs pretty well.
Dec
15
comment On the Coulomb branch of N=2 supersymmetric gauge theory
There's a reason why textbooks and papers are called differently:) I say, you should just try reading a paper which interests you most, using various references. If you can, then you're ready; if you can't, then you're not.
Dec
12
comment On the Coulomb branch of N=2 supersymmetric gauge theory
Once you finish a basic QFT textbook and a SUSY textbook, just pick whatever recent paper which motivates you most, and try to understand it. The required materials are either in the review sections or in the references in the paper. Going through it line-by-line won't work, because the author didn't intend the paper to be read that way. Rather, try to work out an example which is slightly different from what's dealt in the paper. That way, you'll learn exactly which tools are necessary, which part of the paper can be improved, and once done, it might result in your paper!
Dec
11
comment On the Coulomb branch of N=2 supersymmetric gauge theory
Which topic are you referring to? Chiral rings? This paper arxiv.org/abs/hep-th/0211170 contains a nice review. In general, read and understand all papers by Seiberg or by Witten. Problem solved.