成大物理系徽
量子資訊專題演講
演講題目: Lapse Of Transmission Phase And Electron Molecule In Quantum Dots
演講人: Prof. Shmuel Gurvitz
Weizmann Institute of Science, Israel
演講時間: 2009 年 2 月 23 日
星期一  上午 12 : 00
演講地點: 物理二館二樓49223
內容摘要:  
Abstract:

A puzzling behavior of transition phase in the resonant tunneling through a quantum dot can be understood in a natural way via a formation of electron molecule in the quantum dot.
In this case the electron transport proceeds through a the quasi-stationary doorway state, which emerges when the number of electrons occupying the dot reaches a certain "critical" value. Our estimation of this quantity agrees with the experimental data. The dependence of the critical number on the dot's size is predicted as well.