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seen Feb 7 at 19:53

Jul
2
awarded  Curious
Jan
4
answered Lax-Pair for principal chiral model
Jan
4
comment Lax-Pair for principal chiral model
Thanks for your great explanation. By the way, is there any advantage to including a minus sign in the exponent of the Wilson line? It seems like it would be easier to define it without the minus sign in which case the derivation would go as below.
Jan
4
asked Lax-Pair for principal chiral model
Jan
3
asked Large-N factorization of single-trace operators
Dec
19
comment What sets AdS radius of the Vasiliev dual to the O(N) vector model?
That makes some sense. In the free O(N) model we effectively have $\lambda = 0$. Then the equation $R/l_s = 0$ can be satisfied for any value of $R$ since $l_s \to \infty$ in the tensionless limit as you say. So I think the answer is that all values of $R$ are equivalent for the O(N) model.
Dec
19
asked What sets AdS radius of the Vasiliev dual to the O(N) vector model?
Dec
15
comment Gauge fields and strings: Loop equations
Thanks for your answer. I'm not quite sure I fully understand it yet. In the meantime, however, I think I have a more pedestrian explanation (see below).
Dec
15
answered Gauge fields and strings: Loop equations
May
23
revised Gauge fields and strings: Loop equations
edited body
May
23
asked Gauge fields and strings: Loop equations
May
14
revised Setting of renormalization scale in field theory calculations
added 40 characters in body
May
14
asked Setting of renormalization scale in field theory calculations
Feb
4
comment Trace of stress tensor vanishes ==> Weyl invariant
The stress tensor is defined as the variation of $S$ wrt the metric, not wrt the metric and all matter fields.
Feb
4
revised Trace of stress tensor vanishes ==> Weyl invariant
edited body
Feb
4
asked Trace of stress tensor vanishes ==> Weyl invariant
Oct
9
asked Definition of CFT
Sep
3
comment Eq. (5.3.20) Weinberg Volume 1, p. 209
I'm sorry but I thought that $\mathbf{J}^{(1)}$ denotes 3-vector of matrices which have the same components as $(\mathcal{J}_k)^i_j$ where $k$ denotes the 3-vector index. I don't see exactly what about (5.3.6) singles out the 3-direction
Sep
3
awarded  Student
Sep
3
awarded  Editor