Session B32: Focus Session: Superconductivity: Theory and Computation I
11:15 AM–2:03 PM, Monday, March 21, 2005
LACC Room: 507
Sponsoring Units:
DCOMP DCMP
Chair: Jens Kortus, IPCMS
Abstract ID: BAPS.2005.MAR.B32.2
Abstract: B32.00002 : Bethe -Salpeter Equation and Isotope Effect in Superconductivity
11:27 AM–11:39 AM
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Abstract 
Authors:
Yuriy Malozovsky
(Southeastern Louisiana University)
J.D. Fan
(JD Duz (USA)-CQU Institute for Superconductivity,Chongqing University, Chongqing, China and Southern University, Baton Rouge, Louisiana, USA)
We evaluate the temperature of superconducting phase transition in terms of the Bethe-Salpeter equation for the many-body system. We consider the case when both electron-phonon interaction and strong Coulomb interaction coexist. To remove the artificial cutoff at high energy we solve the Bethe-Salpeter equation in terms of the two-particle vacuum scattering amplitude. We show that such an approach leads to the conclusion that the so-called Coulomb pseudopotential appears only due to artificial cutoff and does not exist at all in terms of the Bethe-Salpeter equation.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2005.MAR.B32.2