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

Homogeneous and inhomogenous relaxation time

  1. Jan 18, 2010 #1


    User Avatar

    Consider two-level system, the relaxation time (T1) and the coherence relaxation time (T2). I wonder what's the relation between T1, T2 in homogeneous and inhomogeneous case?

    Here is my thoughts. For inhomogeneous case, all atoms are behave independently, the 'random' phase relation will add up to lower the degree of coherence, hence, T2 will be smaller to that for homogeneous case, right?

    If my statement is correct, T1 is same for bother inhomogeneous and homogeneous cases (right?). Hence, T1/T2 (inhomo.) > T1/T2 (homo) ???

    And I remember (but not sure if it is correct), there is a relation between T1 and T2, says [tex]T1\geq 2T2[/tex]. How does this relation come from? Is that true for both homogeneous and inhomogeneous case? What does it imply physically if T1/T2 ?
  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: Homogeneous and inhomogenous relaxation time
  1. Relaxation rate (Replies: 1)