Recent content by fahmed6

  1. F

    Perturbation effect on harmonic osclillator

    Thanks blechman.you r right.using raising and lowering operators is far more convenient and it solved my pblm.thanks a lot.
  2. F

    Perturbation effect on harmonic osclillator

    what about the hermite polynimials.wat to do with them if i want a general solution.
  3. F

    Perturbation effect on harmonic osclillator

    Im confused about taking out the first and second order perturbation effect on a 1d harmonic oscillator.I get to the integration part but don't know where to go from there. for example if a term of ax^3 is added to the hamiltonian of the harmonic oscillator this is how i start.if i want to...
  4. F

    Quantum Well Problems: Solving Large K1 and K2 Values

    ploting plot(1) and plot(2) should give me the values of Ks at the point of intesection of the two plots.BUt my plots don't even intersect at any point!
  5. F

    Quantum Well Problems: Solving Large K1 and K2 Values

    my k's are very large and whenever i use them in a problem the answer is not right.im posting an example from a book to illustrate what I am saying. For a single quantum well K1=sqrt(2*m*E/h^2) K2=sqrt(2*m*(V-E)/h^2) aplpplying theb boundry conditions on the well gives us plot(1)...
  6. F

    Solving Quantum Well Problems: K1 & K2

    ok I am posting an example from book.its slightly different but solving this wpild solbve my problem with units For a single quantum well K1=sqrt(2*m*E/h^2) K2=sqrt(2*m*(V-E)/h^2) aplpplying theb boundry conditions on the well gives us plot(1) k1=k2*tan(k2*a/2) -k1=k2*cot(k2*a/2) an additional...
  7. F

    Solving Quantum Well Problems: K1 & K2

    im getting the same thing but its not right.thats y i think I am making the a mistake in the units.
  8. F

    Solving Quantum Well Problems: K1 & K2

    this not a homework.just a question realted to Qm.the example i gave is just a random example.
  9. F

    Quantum Well Problems: Solving Large K1 and K2 Values

    I just took up my first course of quantum mechanics and i am having some serious problems solving quantum well problems.the thing is that after i take out the energy states of the well and try to find K1 and K2 from it, the values i get are very very large.i think i am making a msitake with...
  10. F

    Solving Quantum Well Problems: K1 & K2

    But I am converting everything to SI units.Shouldnt that be right?
  11. F

    Solving Quantum Well Problems: K1 & K2

    I just took up my first course of quantum mechanics and i am having some serious problems solving quantum well problems.the thing is that after i take out the energy states of the well and try to find K1 and K2 from it, the values i get are very very large.i think i am making a msitake with...
Back
Top