•Thomas Ludwig^1,2 und Alexander Mirlin^1,2
1Institut für Nanotechnologie, Forschungszentrum Karlsruhe, 76021 Karlsruhe, Germany
²Institut für Theorie der Kondensierten Materie, Universität Karlsruhe, 76128 Karlsruhe, Germany

We study the amplitudes of mesoscopic Aharonov-Bohm oscillations in diffusive metallic rings in the presence of electron-electron interaction. In the limit of strong dephasing we derive an analytical expression for the damping of the oscillations. The dephasing behaviour is qualitatively different from other situations because although L_j is much shorter than the system size the dephasing mechanism is governed by energy transfers determined by the system size.