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!

Find the probability of measuring spin up an axis.

  1. Apr 14, 2015 #1
    1. The problem statement, all variables and given/known data

    Set |Ψ> = (1/√ 2) | ↑, z> + (e / √ 2) | ↓, z>.

    Find the probability of measuring the spin component of sz to be up the z-axis.
    Find the probability of measuring the spin component of sx to be up the x axis.

    2. Relevant equations

    I'm not sure.

    3. The attempt at a solution

    I think I have to find the projection along each axis in the required direction and then multiply by the complex conjugate. How would I go about finding a projection?

    Also, I have an equation for <sz>. Is this the same as finding the probability of spin up the z-axis?
     
    Last edited: Apr 14, 2015
  2. jcsd
  3. Apr 14, 2015 #2
    What gives you the probability of finding the particle in a determinate state in quantum mechanics?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: Find the probability of measuring spin up an axis.
Loading...