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

Interaction picture - time evolution operator

  1. Nov 4, 2015 #1
    Hey all,

    I got some question referring to the interaction picture. For example:

    I have the Hamiltonian ##H=sum_k w_k b_k^\dagger b_k + V(t)=H1+V(t)##

    When I would now have a time evolution operator:

    ##T exp(-i * int(H+V))##.

    (where T is the time ordering operator)

    How can I transform it into the interaction picture?

    Do I have to calculate:

    ##exp[i H(1)t]T exp(-i int(H+V))exp[-i H(1)t]##

    This is nearly impossible, isn't it?

    Best

    (is it possible to use latex here?)
     
    Last edited by a moderator: Nov 4, 2015
  2. jcsd
  3. Nov 4, 2015 #2

    jedishrfu

    Staff: Mentor

    I adjusted your post using the double # around your latex expressions and they look a lot better. You can do the same.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Interaction picture - time evolution operator
  1. Interaction picture (Replies: 8)

  2. Interaction picture (Replies: 1)

Loading...