All Questions
6
questions
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Relation between hamiltonian perturbation theory (classical) and the Fokker Planck drift and diffusion coefficients?
Suppose I have a hamiltonian of the form
$$
H(q,p) = H_0 + \epsilon H_1(q,p)
$$
In perturbation theory we approximate the solution to the equations of motion as a power series in $\epsilon$:
$$
q(t) = ...
3
votes
2
answers
294
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Information theory in classical mechanics
I've only ever heard about information theory being used in stuff related to probability distributions, which makes sense because information and entropy are related. However, I'm having trouble ...
user367128
1
vote
0
answers
47
views
Semi new approach to analyzing mechanical systems
In attempt to Analyze mechanical systems we have base our entire set of theorems on one principle which is very similar to the principle of stationary action:
“ System always evolves in a way that it ...
0
votes
0
answers
42
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Details on why temperature is lower at high altitude
I have read at so many places that warmer air moves up as hotter substances expands and as it rises it loses its kinetic energy and it gets converted into its potential energy(gravitational+...
0
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1
answer
70
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I don't understand an equation of motion (for biological cells)
In a paper about cell dynamics (pdf)
I cannot understand equation (3), because there is an 'arcsin' of a vector.
Let $\theta_i(t)$ be the orientational angle for cell number $i$ at time $t$, $\vec{n}...
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1
answer
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I don't understand how to prove the equation for this force [closed]
I got this excercise that I need to solve. I have tried to draw on forces, but I think I have done something wrong. I have also tried to equate the sides of the triangle. Still I don't understand how ...
