I have calculated radial distribution function and particle distribution of colloidal systems, both shows almost similar behavior. I am confused of both these terminology. Can anyone please explain me in detail about it and can provide any reference to follow it?
Thank you
Dear Padidela,
Quite simply, the radial distribution is a type of particle distribution function. More precisely, the radial distribution function is the 2-particle distribution function. The n-particle distribution function may be written
g(n)(r1,..., rn) = ρ(n)(r1,..., rn) /Πi=1nρ(1)(ri)
If the system is isotropic, the two-particle distribution function g(2)(r1,r2) only depends on r= |r1-r2|, which is generally written as g(r) and called the radial distribution function. I recommend reading Hansen and McDonald's book (Theory of Simple Liquids (2nd edition), Academic Press, 1986), which gives an excellent introduction to particle distribution functions (chapter 2 from memory).
Hope this helps!
Cheers,
Quinn
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