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Two-particle distribution and correlation function for a 1D dusty plasma experiment
Journal article   Peer reviewed

Two-particle distribution and correlation function for a 1D dusty plasma experiment

Amit K Mukhopadhyay and J Goree
Physical review letters, Vol.109(16), pp.165003-165003
10/19/2012
DOI: 10.1103/PhysRevLett.109.165003
PMID: 23215089

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Abstract

Experimentally measured velocities are used to obtain the one- and two-particle distribution functions f(1) and f(2) and the two-particle correlation function g(2)≡f(2)-f(1)f(1). The fluctuating velocities of interacting charged microparticles were recorded by tracking their motion while they were immersed in a dusty plasma. The phase space was reduced by having only two particles in a harmonic one dimensional confining potential. In statistical theory, g(2) is usually said to be dominated by the randomness of collisions, but here we find that it is dominated by collective oscillatory modes.

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