Recent content by sinc

  1. S

    Graduate Why the topological term F\til{F} is scale independent?

    Thank you for your reply. The link given by you is so long that I need some time to follow. However, I donn't agree with your point that "Time and space scale differently ONLY in non-relativistic theory". It is the textbook's convention that space and time scale the same in relativistic region...
  2. S

    Graduate Why the topological term F\til{F} is scale independent?

    We are considering the most general rescaling, so space and time scale differently. This is especially true for nonrelativistic case.
  3. S

    Graduate Why the topological term F\til{F} is scale independent?

    if the spacetime coordinates scales as x_{0}→S^{a}\bar{x_0}, x_{i}→S^{b}\bar{x_i},then the potential vector scales as follow: A_{0}→S^{a+d}\bar{A_0}, A_{i}→S^{b+d}\bar{A_i}
  4. S

    Graduate Why the topological term F\til{F} is scale independent?

    why the topological term in gauge theory, ε_{\mu\nu ρσ}F^{\mu \nu} F^{ρσ} ,is scale-independent?