1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Help in hard model of RABR - solitons- solving PDE

  1. Jan 19, 2009 #1
    hello all,

    im doing a research on model called RABR which supports dark and bright solitons.

    as first step i need to find numeric solution for the following equation:

    F'' = c1*F - c2*F/sqrt(c3+F^2)

    where c1, c2 , c3 are const, and F is function of x, i.e: F= F(x)

    i try to make finite differences, but it didnt work out.

    second model which is harder is the set of 2 equations:

    (1) dG^2/dt^2 - dG^2/dz^2 = c1*G + c2*i*P - 2*G*sqrt(1-abs(P)^2)

    (2) dP/dt = -i*P - G*sqrt(1-abs(P)^2)

    i dont know how to start simulate this, i thought about "crank nicolson" method, but im not sure it's fit, and how do i change the terms in this method

    i will be gratefull for any help
     
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you help with the solution or looking for help too?
Draft saved Draft deleted



Similar Discussions: Help in hard model of RABR - solitons- solving PDE
  1. Help in solving PDE (Replies: 4)

Loading...