Position Operator

Finite Potential Energy Well Exercise #1

Please answer the  following 2 questions regarding the Physlet:

State 1 State 2

Press the play button to evolve the wave function in time.


Shown is the time-dependent wave function and the real (red) and imaginary (green) parts of the probability density for a particle in a finite  square potential energy well of length a = 2.   The wave function evolves with time according to the TDSE.  You may change the state by choosing either State1 or State 2. 


  1. Are the states shown eigenstates of the finite potential energy well?  
  2. Why or why not?


Script by Wolfgang Christian.
Questions by Mario Belloni.
Java applets by Wolfgang Christian.