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arXiv physics/0509111physics.gen-ph
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麦克斯韦恶魔的另一种实现方式

Another Way To Realize Maxwell's Demon

Xinyong Fu, Zitao Fu

摘要:

这是实现麦克斯韦“恶魔”假说的另一种途径。在真空管中放置两个Ag-O-Cs热电子喷射器A和B。施加在管上的非均匀磁场为热电子提供单向通道。喷射器A失去电子,带正电,而喷射器B得到电子,带负电,产生电压。在从A飞到B的过程中,电子的速度降低,它们的一部分热动能转化为电势能。因此,整个电子管的温度略微下降,并且可以通过从环境空气吸收的热量来补偿。该装置可以提供一个小的,但宏观的权力,以外部负载,违反开尔文的第二定律的陈述。

英文摘要:

This is another approach to realize Maxwell's "demon" hypothesis. Two Ag-O-Cs thermal electron ejectors, A and B, are settled in a vacuum tube. A non-uniform magnetic field exerted on the tube provides a one-way channel for the thermal electrons. Ejector A, losing electrons, charges positively, while ejector B, getting electrons, charges negatively, resulting in an electric voltage. In flying from A to B, the speed of the electrons decreases, and part of their thermal kinetic energy converts into electric potential energy. Thus, the temperature of the whole electron tube drops down slightly, and that can be compensated by the heat attracted from the ambient air. The device can provide a small but macroscopic power to an external load, violating Kelvin's statement of the second law.

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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