Radial distribution function

In statistical mechanics, the radial distribution function, (or pair correlation function) $g(r)$ in a system of particles (atoms, molecules, colloids, etc.), describes how density varies as a function of distance from a reference particle.

If a given particle is taken to be at the origin O, and if $\rho =N/V$ is the average number density of particles, then the local time-averaged density at a distance $r$ from O is $\rho g(r)$ . This simplified definition holds for a homogeneous and isotropic system. A more general case will be considered below.

单词	Pair correlation function
释义	Pair correlation function 英语百科 Radial distribution function In statistical mechanics, the radial distribution function, (or pair correlation function) $g(r)$ in a system of particles (atoms, molecules, colloids, etc.), describes how density varies as a function of distance from a reference particle. If a given particle is taken to be at the origin O, and if $\rho =N/V$ is the average number density of particles, then the local time-averaged density at a distance $r$ from O is $\rho g(r)$ . This simplified definition holds for a homogeneous and isotropic system. A more general case will be considered below.
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Pair correlation function

Radial distribution function