کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
977059 1480109 2016 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Frequency thermal response and cooling performance in a microscopic system with a time-dependent perturbation
ترجمه فارسی عنوان
فراوانی پاسخ حرارتی و عملکرد خنک کننده در یک سیستم میکروسکوپی با یک اختلال وابسته به زمان
کلمات کلیدی
فرآیندهای حمل و نقل؛ انتقال حرارت؛ خنک کننده کوانتومی
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات فیزیک ریاضی
چکیده انگلیسی


• Energy transfer in systems subject to time dependent perturbations is studied.
• Frequency dependent heat transport regimes are studied.
• Characterization of the cooling performance of the system.

Following the nonequilibrium Green’s function formalism we study the thermal transport in a composite chain subject to a time-dependent perturbation. The system is formed by two finite linear asymmetric harmonic chains subject to an on-site potential connected together by a time-modulated coupling. The ends of the chains are coupled to two phononic reservoirs at different temperatures. We present the relevant equations used to calculate the heat current along each segment. We find that the system presents different transport regimes according the driving frequency and temperature gradients. One of the regimes corresponds to a heat pump against thermal gradient, thus a characterization of the cooling performance of the device is presented.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica A: Statistical Mechanics and its Applications - Volume 464, 15 December 2016, Pages 64–73
نویسندگان
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