Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Mathematical state of Path Integral?

  1. Feb 13, 2015 #1
    So I've just recently started learning path integral methods in QFT and string theory, and I've heard from numerous sources that the path integral (specifically fermionic path integrals, perhaps?) are objects which are not at all on solid mathematical ground. The feeling I get is that perhaps they're well enough understood for the kind of specific situations in physics, but lack generality. It seems Feynman discovered some phenomenal new mathematical landscape that no mathematicians had yet seen, much less understood.

    I'm wondering whether this is all accurate. And moreover, what about random surfaces in string theory? It seems there is very shaky mathematical rigour for integrating over topologies and embeddings.
  2. jcsd
  3. Feb 13, 2015 #2


    Staff: Mentor

  4. Feb 14, 2015 #3


    User Avatar
    Science Advisor

Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Mathematical state of Path Integral?
  1. The Path Integral (Replies: 15)