Statistical physics of the solvated electron
Department of Quantum-Chemical Systems, Institute of Mathematical Problems of Biology, Russian Academy of Sciences, Pushchino, Moscow Region, Russian Federation
Statistical models of an electron solvated in a classical liquid are reviewed. The analogy between the behaviour of a quantum particle and a polymer chain results in that statistical physics methods can be applied to the solvated electron problem. We have derived basic relations for thermodynamic and structural characteristics of the solvated electron. The free energy of the solvated electron and the effective electron-solvent potential as well as the electron-solvent correlation function are studied in detail. The calculated results are compared with experimental data and a quantum molecular dynamics simulation for simple, polar, and Coulomb liquids. We also outline many-particle quantum effects, such as electron-electron interactions and dielectron (bipolaron) formation. The potentialities and restrictions of the statistical method are also discussed.