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awarded  Notable Question
Nov
17
asked Penrose diagram for spacetime which flows to $AdS_{2}$ at infinity
Oct
29
awarded  Yearling
Oct
27
revised What is conformal gauge?
added 45 characters in body
Oct
27
revised What is conformal gauge?
added 9 characters in body
Oct
26
comment What is conformal gauge?
Thanks for the reference, I will chack it a bit later ;)
Oct
26
comment What is conformal gauge?
I mean that they do them while analyzing CGHS model and similar model. I do not understand the following thing: "why are we satisfied when we obtain the solutions for metrics and fields in conformal gauge for action, which we get after weyl transformation etc?" Because action and equations in, for example, CGHS model has no invariance under weyl transformation and conformal gauge, hasn't it?
Oct
26
comment What is conformal gauge?
It seems to me that you haven't answer my question. I asked about the role and meaning of these transformations in gravity. The connection is not obvious.
Oct
26
asked What is conformal gauge?
Oct
8
accepted Two expressions for topological instanton number
Oct
8
comment Two expressions for topological instanton number
Btw, I think you meant $-9 dA\wedge A\wedge A$ instead of $-9 A\wedge A\wedge A$, right? (:
Oct
6
comment Two expressions for topological instanton number
Thank you for your answer! Also I've learned how to write "trace" in the right way from it ;)
Oct
6
revised Two expressions for topological instanton number
added 1 character in body
Oct
6
asked Two expressions for topological instanton number
Sep
17
comment Poincare invariant Lagrangians
In general, as far as I know, fields are maps from manifold M to manifold N. What do you mean saying "function of $\phi(x)$"? Do you mean the image of this map in some chosen local coordinates on N?
Sep
10
accepted Lorentz symmetry and Noether's theorem
Sep
8
asked Lorentz symmetry and Noether's theorem
Jul
2
awarded  Curious
May
21
awarded  Benefactor
May
21
accepted Domain walls intersection