کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1814200 | 1025646 | 2008 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The effects of LO phonons on charge qubit
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this paper, we study the influence of LO phonon (LOP) on the charge qubit in a quantum dot (QD), and find that the eigenenergies of the ground and first excited states are reduced due to the electron-LOP interaction. At the same time, the time evolution of the electron probability density is obtained, the dependence of the oscillating period on electron-LOP coupling constant is found, the relation of between the oscillating period and the confinement length of the QD is calculated. Finally, we consider the effects of the electron-LOP coupling constant on pure dephasing factor under considering the correction of electron-LOP interaction for the wave functions. Our results suggest that electron-LOP interaction has very important effects on charge qubit.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 403, Issue 18, 1 September 2008, Pages 3013-3017
Journal: Physica B: Condensed Matter - Volume 403, Issue 18, 1 September 2008, Pages 3013-3017
نویسندگان
Yun-Fei Liu, Jing-Lin Xiao,