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arXiv 0909.3618cond-mat.stat-mech
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单能级量子点的有限时间热力学

Finite time thermodynamics for a single level quantum dot

Massimiliano Esposito, Ryoichi Kawai, Katja Lindenberg, Christian Van den Broeck

摘要:

研究了单能级费米子系统通过隧道结与热库相互作用的有限时间热力学。从量子主方程计算出在有限时间内单个能级在初始较高值和最终较低值之间移动时从系统中提取最大功的最优协议。计算还产生了最佳协议,以提高能级与系统上的工作量最少的支出。最优协议在初始和最终时刻显示不连续跳跃。

英文摘要:

We investigate the finite time thermodynamics of a single-level fermion system interacting with a thermal reservoir through a tunneling junction. The optimal protocol to extract the maximum work from the system when moving the single energy level between an initial higher value and a final lower value in a finite time is calculated from a quantum master equation. The calculation also yields the optimal protocol to raise the energy level with the expenditure of the least amount of work on the system. The optimal protocol displays discontinuous jumps at the initial and final times.

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