•Thomas Ludwig1,2 und Alexander Mirlin1,2
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 Lj
is much shorter than the system size the dephasing mechanism is governed
by energy transfers determined by the system size.