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

Four dimentional vector in special relativity

  1. Aug 1, 2012 #1
    About momentum-energy vector ,we have :


    and four dimentianal wave vector :


    They also satisfy the ralation :


    because E=[itex]\frac{h}{2\pi}[/itex][itex]\omega[/itex].

    It is interesting.
    Last edited: Aug 1, 2012
  2. jcsd
  3. Aug 2, 2012 #2


    User Avatar
    Science Advisor
    Gold Member

    FYI: very few people use the imaginary basis for time anymore, when speaking of 4-vectors. Instead of a (+,+,+,+) metric with one imaginary basis, a mixed signature metric is used.
  4. Aug 2, 2012 #3

    In the four dimentional space-time vector,the concept of time has been bent,because time has the meaning of evolution and irreversibility.So it can't convert into space freely.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook