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arXiv 1306.2742cond-mat.stat-mechcond-mat.mes-hall
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Maxwell 'sDemon单电子泵的信息流和最优协议

Information flow and optimal protocol for Maxwell's demon single electron pump

J. Bergli, Y. M. Galperin, N. B. Kopnin

摘要:

我们研究了基于单电子晶体管的麦克斯韦恶魔器件中的熵和信息流。我们构建了用于测量电荷状态和操纵栅极电压的协议,该协议对于(i)来自环境的恒定输入功率或(ii)给定的能量增益使不可逆性最小化。电荷测量是由一系列的检测器读出时间依赖性的栅极电位建模,并确定所获得的信息量。该协议优化了由于(i)打开屏障时配置空间的扩大和(ii)有限的操作速率而产生的不可逆性。这些最佳协议是通用的,适用于不同区域之间的屏障可以被操纵的所有系统。

英文摘要:

We study the entropy and information flow in a Maxwell demon device based on a single-electron transistor with controlled gate potentials. We construct the protocols for measuring the charge states and manipulating the gate voltages which minimizes irreversibility for (i) constant input power from the environment or (ii) given energy gain. Charge measurement is modeled by a series of detector readouts for time-dependent gate potentials, and the amount of information obtained is determined. The protocols optimize irreversibility that arises due to (i) enlargement of the configuration space on opening the barriers, and (ii) finite rate of operation. These optimal protocols are general and apply to all systems where barriers between different regions can be manipulated.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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