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Electron scattering through a quantum dot: A phase lapse mechanism

1997; American Physical Society; Volume: 55; Issue: 20 Linguagem: Inglês

10.1103/physrevb.55.13726

1095-3795

Yuval Oreg, Yuval Gefen,

Cold Atom Physics and Bose-Einstein Condensates

The scattering phase shift of an electron transferred through a quantum dot is studied within a model Hamiltonian, accounting for both the electron-electron interaction in the dot and a finite temperature. It is shown that, unlike in an independent electron picture, this phase may exhibit a phase lapse of \ensuremath{\pi} between consecutive resonances under generic circumstances.