M. A. Butlitskii, B. B. Zelener, B. V. Zelener, È. A. Manykin, “Two-particle density matrix and the electron-proton interaction pseudopotential at ultralow temperatures”, Zh. Vychisl. Mat. Mat. Fiz., 2008, Volume 48, Number 1,Pages <nobr>154

This article is cited in 7 papers

Two-particle density matrix and the electron-proton interaction pseudopotential at ultralow temperatures

M. A. Butlitskii^a, B. B. Zelener^b, B. V. Zelener^b, È. A. Manykin^a

^a Moscow Engineering Physics Institute (State University), Kashirskoe sh. 31, Moscow, 115409, Russia
^b Joint Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya ul. 13/19, Moscow, 127412, Russia

Abstract: The two-particle density matrix of the electron-proton interaction is exactly calculated at temperatures $T$ between 3 and 100 K. The connection of the results with the semiclassical approximation is shown. A method is described for calculating the Coulomb wave functions necessary for the determination of the density matrix.

Key words: density matrix, hydrogen-like atom, pseudopotential, electron-proton interaction.

UDC: 519.634

Received: 01.03.2007
Revised: 09.07.2007