Polarization's interaction and bound states of like charged particles in plasma

It has been shown that, as a result of the plasma polarization, there appea rs a minimum of potential energy of interaction of small like charged parti cles. With a use of the quasi-classical approximation, an existence conditi on of the bound state of two like unit charges has been obtained. An opport unity of electron pairs formation caused by the plasma polarization in high temperature superconductors is evaluated. (C) 2001 Elsevier Science B.V. A ll rights reserved.