Statistical Mechanics of Self–Gravitating System : Cluster Expansion Method
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چکیده
We study statistical mechanics of the self–gravitating system applying the cluster expansion method developed in solid state physics. By summing infinite series of diagrams, we derive a complex free energy whose imaginary part is related to the relaxation time of the system. Summation of another series yields two–point correlation function whose correlation length is essentially given by the Jeans wavelength of the system.
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تاریخ انتشار 2012