Cluster formation in the Fermi system with long-range interaction
| Autor: | B. I. Lev, K. V. Grigorishin |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Physics
Partition function (statistical mechanics) Statistical Mechanics (cond-mat.stat-mech) Thermodynamic equilibrium Cluster (physics) FOS: Physical sciences General Materials Science Plasma Condensed Matter Physics Kinetic energy Molecular physics Condensed Matter - Statistical Mechanics Fermi Gamma-ray Space Telescope |
| DOI: | 10.48550/arxiv.0803.0872 |
| Popis: | Based on statistical approach we described possible formation of spatially inhomogeneous distribution in the system of interacting Fermi particles by long-rage forces, and we demonstrated nonperturbative calculation of the partition function in this case. It was shown, that particles interacting with an attractive $1/r$ potential form clusters. Cluster is equilibrium structure, if we suppose that average energy of interaction of two particles is much less than their average kinetic energy $kT$. The analogy between self-gravitation gas and plasma was shown. The dynamics of cluster formation was considered with help hydrodynamical and statistical approaches, and time of relaxation to equilibrium state was found. Comment: 23 pages, 4 figures |
| Databáze: | OpenAIRE |
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