1. Limited time only! Sign up for a free 30min personal 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!

Homework Help: Complementary observables

  1. Dec 9, 2011 #1
    1. The problem statement, all variables and given/known data
    Are the observables corresponding to the d/dx and x^2 operators complementary?


    2. Relevant equations
    none


    3. The attempt at a solution
    I know that if the operators do not commute then their corresponding observables are complementary. I just dont know how to show mathematically that they dont commute.
     
  2. jcsd
  3. Dec 9, 2011 #2
    Use the commutator definition [A,B]=AB-BA to show if they commute or not.
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook