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

Questions about Kaluza-Klein Theory

  1. Dec 19, 2014 #1
    I know this is technically not orthodox GR, but it is closely related. I was reading about Kaluza-Klein theory, but I don't completely understand it. Under what circumstances would could a gravitational field induce an electromagnetic field under this theory. Also, how is the Ricci tensor different?
     
    Last edited: Dec 19, 2014
  2. jcsd
  3. Dec 19, 2014 #2

    jedishrfu

    Staff: Mentor

  4. Dec 19, 2014 #3

    PeterDonis

    User Avatar
    2016 Award

    Staff: Mentor

    Under the circumstance that the universe has five dimensions, not four, and the fifth dimension is curled up into a tiny circle at each point of what we call four-dimensional spacetime. Then the Einstein Field Equation for "gravity" in five dimensions can be split up into two pieces: one is the Einstein Field Equation for gravity in four dimensions; the other turns out to be Maxwell's Equations for electromagnetism in four dimensions.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Questions about Kaluza-Klein Theory
  1. Kaluza-Klein theory (Replies: 6)

Loading...