کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8204219 | 1530536 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of photon field on heat transport through a quantum wire attached to leads
ترجمه فارسی عنوان
اثرات میدان فوتون بر انتقال حرارت از طریق یک سیم کوانتومی متصل به منجر
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک و نجوم (عمومی)
چکیده انگلیسی
We theoretically investigate photo-thermoelectric transport through a quantum wire in a photon cavity coupled to electron reservoirs with different temperatures. Our approach, based on a quantum master equation, allows us to investigate the influence of a quantized photon field on the heat current and thermoelectric transport in the system. We find that the heat current through the quantum wire is influenced by the photon field resulting in a negative heat current in certain cases. The characteristics of the transport are studied by tuning the ratio, ħÏγ/kBÎT, between the photon energy, ħÏγ, and the thermal energy, kBÎT. The thermoelectric transport is enhanced by the cavity photons when kBÎT>ħÏγ. By contrast, if kBÎT<ħÏγ, the photon field is dominant and a suppression in the thermoelectric transport can be found in the case when the cavity-photon field is close to a resonance with the two lowest one-electron states in the system. Our approach points to a new technique to amplify thermoelectric current in nano-devices.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters A - Volume 382, Issue 4, 30 January 2018, Pages 199-204
Journal: Physics Letters A - Volume 382, Issue 4, 30 January 2018, Pages 199-204
نویسندگان
Nzar Rauf Abdullah, Chi-Shung Tang, Andrei Manolescu, Vidar Gudmundsson,