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Nov
15
answered Path integral derivation of the state-operator correspondence in a CFT
Aug
13
answered What is the physical meaning of commutators in quantum mechanics?
Jun
17
answered Intersecting Wilson loops in 2D Yang-Mills
Dec
12
answered Proof that higher genus surface admits a metric of negative Ricci scalar everywhere
Nov
27
answered Error in books of conformal field theory?
Nov
26
asked Is Einstein-Hilbert action the unique action whose variation gives Einstein's field equations?
Aug
17
answered Why Weyl invariance is important for consistent string theory
Jul
17
answered Is there a general relationship between the conformal weight of a field and its (classical) scaling dimension?
Jul
17
answered Identify the coefficients of Operator Product Expansion (OPE)
Jul
6
asked Why does tachyon arise in bosonic string theory?
May
24
answered Is there a general systematic approach how to calculate the individual terms in an operator product expansion?
May
7
answered Irreducible Representations Of Lorentz Group
Apr
17
answered When can a global symmetry be gauged?
Mar
9
answered commutation of operator product expansion
Dec
10
asked Identification of extended quantum objects?
Dec
3
answered Why is the “canonical momentum” for the Dirac equation not defined in terms of the “gauge covariant derivative”?
Nov
28
answered Is there a default notation for 4-vectors while handwriting?
Nov
28
answered Special Relativity
Nov
14
answered Why is electric field zero inside a hollow metal sphere ?
Nov
13
answered How to compute the expectation value $\langle x^2 \rangle$ in quantum mechanics?