Yuji

1,522 reputation

413

bio	website	member.ipmu.jp/yuji.tachikawa
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visits	member for	2 years, 3 months
	seen	May 13 at 9:11
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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 ...

	1,522 reputation	bio	website	member.ipmu.jp/yuji.tachikawa	visits	member for	2 years, 3 months
413 badges		location			seen	May 13 at 9:11

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May 12	answered	Motivation for the Deformed Nekrasov Partition Function
Feb 11	awarded	Yearling
Jan 17	comment	Construction of the supersymmetric Faraday tensor @QuantumDot Read Wess-Bagger. The answer is there.
Jan 10	awarded	Enlightened
Jan 10	awarded	Nice Answer
Nov 3	comment	Is there a theorem that says that QFT reduces to QM in a suitable limit? A theorem similar to Ehrenfest's theorem? @Prathyush Ask as a separate question. That's how stackexchange works.
Aug 18	asked	Reflection positivity in general
Jul 16	comment	About 2+1 dimensional superconformal algebra Now that you understand that point, I think you should stop asking and think for several days by yourself. Good luck!
Jul 16	comment	About 2+1 dimensional superconformal algebra You need to distinguish two questions: what is the representation of the supercharge and what is the representation of the quantum states the supercharge is acting on. In order to get the inequality you're interested, you need to consider the latter question. You can't fix $I$ to be $N\times N$ and $M_{\mu\nu}$ to be $2\times 2$. They depend on $h$ and $j$. You try extracting $j$ from the $M_{\mu\nu}$ you already fixed, but that's not the point. $j$ depends on the quantum states.
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