Recent content by iibewegung

\mathrm{prob} \propto \mathrm{e}^{-\frac{(a -x_1)^2}{2 \sigma^2}} \mathrm{e}^{-\frac{(x_1 -x_2)^2}{2 \sigma^2}} \mathrm{e}^{-\frac{(x_2 -x_3)^2}{2 \sigma^2}} \mathrm{e}^{-\frac{(x_3 -b)^2}{2 \sigma^2}} a and b are known real constants. Is there a way to generate x_1, x_2, x_3 independently...

Hi, Could anyone tell me what type of statistical test is used to estimate the parameters of the standard model? I hear many particle physicists say, eg. "we have a 95% confidence that this quark mass falls between A and B" and what immediately comes to mind are the methods of statistical...

Can someone give a clear definition of a ferromagnetic ordering wave vector and an antiferromagnetic ordering wave vector? I see the terms being used all over the literature (to calculate order parameters etc.) but never truly caught onto the definitions. Any help greatly appreciated-

I'm not sure if this is the right place to post a graduate level course material, but I have a question about perturbative expansion of the 2n-point function of a scalar field theory. Homework Statement First, the question: In which space (position or momentum) is the topological distinctness...

Hi, Can anyone tell me an algorithm to generate the stationary Gaussian distribution R(t) with \langle R(t) \rangle = 0 (zero mean) \langle R(t) R(t')^{T} \rangle = A \delta(t-t') , A = 2 \gamma k_B T m (autocorrelation) ? What I just wrote is from the Wikipedia article "Langevin...

Just curious... Is there a single textbook (excluding freshman physics books and encyclopedias) that beats MTW Gravitation in its thickness (either ruler-measured or page number-wise)?

Sorry for wasting space... I figured it out. (wasn't reading the definition of normalizers carefully) It was one of those things that one could attach "Clearly," at the front of the statement. Unfortunately, this leads to another question... How do I delete this thread?

[SOLVED] Normalizer & normal subgroup related Let H \subset G. Why is H a normal subgroup of its own normalizer in G?

Thanks for the answer. actually... i decided to change the question to the one you see now (edited) on the first msg, a few minutes after writing it the first time... i was able to change the body of the msg but not the title of the thread. can this new question be answered here as well? .. or...

Homework Statement Hi, I've read from Wikipedia that in the Hartree-Fock approximation, "Each energy eigenfunction is assumed to be describable by a single Slater determinant". My question is... if the approximation fails and the system has to be described by linear combinations of more than...

I agree with what you say, but I'm not sure about Weinberg himself, or whether he meant what he was saying when he was giving this talk. (I was there) He seemed to be extremely nervous while giving the talk, especially with Philip Anderson in the audience. It seemed to me that he was invited...

Hi, (All oscillations I'll be talking about here are longitudinal.) For coupled oscillations of 2 masses between 3 identical springs (ends held fixed by walls), I think it was a standard textbook mechanics problem to show that the lowest-frequency mode is the symmetric one (where the masses...

Hello condensed matter gurus out there, I'm a new graduate student who's been trying to understand some sentences in a review article that reads: ----- ... One of Feynman's early successes with path integrals is often neglected, his mapping with path integrals of a quantum system onto a...