Recent content by karanmohan

  1. K

    Can Entropy Reveal the Secrets of the Universe? A Search for Einstein's Paper

    Hello I am looking for a certain paper by Albert Einstein (sometime between 1905 and 1920), where Einstein discusses Entropy - in this paper, he presents entropy, but then says that the term in the exponential or logarithm (cant remember which) need to be dimensionless. So he divides the term...
  2. K

    Translation in Spherical Coordinates

    Hello, this one is doing my head in. I'm trying to plot and play with wavefunctions by moving the originm, but i need to do it in spherical coordinates. Suppose i have a function G(r',theta',phi'), centered at the origin of the system r',theta',phi'. I also have a similar...
  3. K

    Energy of an electric quadrupole in an Electric Field

    thanks a lot clem, that really helps alot...do you have reference by any chance?
  4. K

    Energy of an electric quadrupole in an Electric Field

    hmm...thanks for the link friend, but it doesn't give me enough detail unfortunately :(
  5. K

    Energy of an electric quadrupole in an Electric Field

    Hello, I have tried to look for related threads but could not find any. Please excuse me if this is a repetition. I was curious about the energy of an electric quadrupole moment in an electro-magnetic field. Basically, i am trying to follow first order perturbation theory and derive the...
  6. K

    Behavior of the natural log at large values of x

    thanks for the response...hmm, i can't seem to see a linear behavior in there, despite seeing a somewhat linear behavior when i plot it. Am i just visualizing something?
  7. K

    Behavior of the natural log at large values of x

    Hello, I am fairly new here, so thank you in advance for your help. This is not a homework problem, just one of curiosity based on my limited knowledge of asymptotic expansions. I'm curious about how the function ln(x) or ln(1+x) behaves for large values of x. Plotting in Matlab, I see a linear...
  8. K

    Arbitrary Velocity C in Special Relativity

    hi Jesse, thank you for the response. I went through the other derivation, and while it works well, I don't understand why you would need to introduce a third frame, which as you mentioned is galilean, but wrong because the correct transform would have to be lorentz. So it appears from your...
  9. K

    Arbitrary Velocity C in Special Relativity

    Hello friends, i am also following the derivation of Einstein in OEMB paper. However, i have a few questions that you may be able to help me with. When einstein says let x'=x-vt, it seems he is referring to a point stationary in the moving frame k, and moving at speed v. Thus, x' is the...
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