通过不确定性交易能量来突破兰道尔极限
Beating the Landauer's limit by trading energy with uncertainty
摘要：
根据未来10-15年的国际半导体技术路线图，开关操作的物理限制将成为CMOS技术未来扩展的主要障碍。在这些限制中，最基本的是由所谓的香农-冯诺依曼-兰道尔限制表示的，该限制将下限设置为每比特擦除操作耗散的最小热。在这里，我们表明，在一个纳米级的开关，在有限的温度T下工作，这个限制可以通过交易的耗散能量与开关逻辑状态的可扩展性的不确定性击败。我们建立了开关操作中最小所需能量和最大错误率之间的一般关系，并简要讨论了未来开关设计中的潜在应用。
英文摘要：
According to the International Technology Roadmap for Semiconductors in the next 10-15 years the limits imposed by the physics of switch operation will be the major roadblock for future scaling of the CMOS technology. Among these limits the most fundamental is represented by the so-called Shannon-von Neumann-Landauer limit that sets a lower bound to the minimum heat dissipated per bit erasing operation. Here we show that in a nanoscale switch, operated at finite temperature T, this limit can be beaten by trading the dissipated energy with the uncertainty in the distinguishability of switch logic states. We establish a general relation between the minimum required energy and the maximum error rate in the switch operation and briefly discuss the potential applications in the design of future switches.
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