Recent content by jplcarpio

  1. J

    Measurement in quantum mechanics problem

    I guess that would be the equation of the initial state, as given in the problem, since it's in the harmonic oscillator potential into which the system was allowed to evolve back. Would the initial state always hold in between measurements if it is left alone? I've read that successive...
  2. J

    Measurement in quantum mechanics problem

    Hi all, In our assignment, we were given this question: [PLAIN]http://img685.imageshack.us/img685/4854/prob213.png I know that for (a), the answer is the first energy eigenstate since the measured energy corresponds to it. I'm not sure about the situation in (b), though. Does...
  3. J

    Probability in quantum mechanics

    Ohhh, okay. I didn't quite understand how to incorporate the complex phase factor into the coefficients, we weren't given examples of that. Thank you all, I believe I can finish the problem now. :)
  4. J

    Probability in quantum mechanics

    It wasn't specified that the coefficients are real and positive for the problem, though in the discussions the book Griffiths assumed that they were for simplicity. How would you know if 1/\sqrt{2} or -i/\sqrt{2} should be used (based on your example), if c is indeed complex? Thank you...
  5. J

    Probability in quantum mechanics

    Hi all, In my class we were given an assignment from Introduction to Quantum Mechanics by David Griffiths. The question is in Chapter 3, problem 3.34. http://img41.imageshack.us/img41/7899/prob334.png (The system has a harmonic oscillator potential.) Right now I'm stuck with...
  6. J

    3D plot of electrical potential

    One of my friends suggested something like this, however I need n= +inf. :( I tried plotting the first equation in MS Math, and it just gave me a horizontal plane which I doubt is the answer. I'll still try out your suggestion, perhaps I can improvise a way. (But if someone out there has the...
  7. J

    3D plot of electrical potential

    Hi all, I apologize in advance if this isn't the right forum to put my question. Homework Statement In our electromagnetism course, we were asked to give the 3D plots of the electric potential V(x/y) for the examples on our book. (We're currently using Introduction to Electrodynamics (3rd...
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