Abstract
The puzzling non-universal conductance quantization in two-terminal fully-ballistic longquantum wires is explained, within a many-particle wavepacket formalism, as a limitationof the electron injecting flux due to the fermion exchange-interaction effect. The Landauerconductance step is obtained when injection of electrons, one by one, is considered. Reductions ofG0 in long quantum wires are due to a many-particle exchange interaction effect when severalelectrons are injected, simultaneously, into the system. Numerical results are provided forconductance step reductions in ballistic GaAs/AlGaAs quantum wires longer than1 µm that are in good agreement with experimental results.
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