QuantumDot

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As time goes on, I grow more disillusioned with quantum field theory.

	1,274 reputation	bio	website		visits	member for	10 months
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May 18	accepted	Beta-function non-zero at classical level?
May 18	comment	Beta-function non-zero at classical level? Excellent! Thanks very much
May 18	comment	Beta-function non-zero at classical level? Yes $\mu$ is dim-reg parameter. So, if I understand you correctly? Is it true, in all cases the classical beta function for a parameter, $x$, of mass-dimension $[x]$ is ALWAYS $\beta(x) = -[x]\times x$? Thank you again! So how do I write out the full thing with quantum corrections (involving the anomalous part $\gamma$)? Is it $\beta(x) = -[x]\times x + \gamma(x)$? Is that the exact correct formula?
May 17	revised	Beta-function non-zero at classical level? added 2 characters in body
May 17	comment	Beta-function non-zero at classical level? Good catch! Ill fix it!
May 17	comment	Beta-function non-zero at classical level? Thanks! but I already understand it qualitatively. I want to know the formal definition: why the minus sign? how to connect it to the 't Hooft parameter $\mu$. And it's relation to the 'anomalous dimension' $\gamma(m^2)$... Thanks!
May 17	asked	Beta-function non-zero at classical level?
Apr 14	asked	How to write down the detailed balance (microreversed) amplitude
Apr 9	accepted	Runge-Lenz vector and Keplerian Orbits
Apr 8	asked	Light Front Dynamics and Infinite Momentum Frame
Apr 8	asked	Runge-Lenz vector and Keplerian Orbits
Apr 6	asked	Contact Term and Schwinger Term
Mar 26	accepted	Gell-Mann Low Theorem and Vacuum Energy
Mar 25	asked	Gell-Mann Low Theorem and Vacuum Energy
Mar 11	accepted	Induce a Fayet-Iliopoulos term
Feb 28	revised	Loop integral using Feynman's trick edited body
Feb 28	accepted	Loop integral using Feynman's trick
Feb 28	comment	Two ways to form SU(2) singlets? As a note to myself and others, $(v^*)_i$ and $\epsilon_{ij}v^j$ are two different objects. But, both transform as in the same way; namely as $\bar{\bf{2}}$.
Feb 28	accepted	Two ways to form SU(2) singlets?
Feb 28	comment	Two ways to form SU(2) singlets? This answer together with @Qmechanic 's result has clarified the confusion! This answer, in particular is invaluable. Would you know where I could find info on the representation theory of $GL(m,C)$ as you mention in this answer?