کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9837986 | 1525287 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The phase of Fano resonance in Aharonov-Bohm interferometer with a quantum dot embedded
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The phase of Fano resonance in Aharonov-Bohm interferometer with a quantum dot embedded The phase of Fano resonance in Aharonov-Bohm interferometer with a quantum dot embedded](/preview/png/9837986.png)
چکیده انگلیسی
We study the Fano effect of a closed Aharonov-Bohm mesoscopic interferometer, with a quantum dot embedded in one of the paths, in the presence of dephasing which is introduced by the Büttiker model. An exact analytic formula of conductance including dephasing factor is derived and can be written as an extended Fano form with a complex Fano parameter q. While the total conductance is unitary, the coherent part has broken unitarity due to dephasing, and thus has continuous phase shift. Our results agree with recent experimental measurements.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 355, Issues 1â4, 31 January 2005, Pages 216-221
Journal: Physica B: Condensed Matter - Volume 355, Issues 1â4, 31 January 2005, Pages 216-221
نویسندگان
Yong-Jian Xiong, Xian-Ting Liang,