光学与电子学中的超光速效应与负群时延及其应用
摘要
最近出现的看似光速更快效应确认了我们预测的光学介质中的群速度可以超过c。特殊相对论不受这些现象的影响。此外，在电子领域，因果原则不禁止分析信号在电子电路中出现负群时延，即输出脉冲的峰值在输入脉冲的峰值进入电路输入端口之前就离开电路输出端口。Furthermore, pulse distortion for these superluminal analytic signals can be negligible in both the optical and electronic domains. Here we suggest an extension of these ideas to the microelectronic domain. The underlying principle is that negative feedback can be used to produce negative group delays. Such negative group delays can be used to cancel out the positive group delays due to transistor latency (e.g., the finite RC rise time of MOSFETS caused by their intrinsic gate capacitance), as well as the propagation delays due to the interconnects between transistors. Using this principle, it is possible to speed up computer systems.
引用
@article{arxiv.cs/0103014,
title = {Faster-than-light effects and negative group delays in optics and electronics, and their applications},
author = {Raymond Y. Chiao and Jandir M. Hickmann and Daniel Solli},
journal= {arXiv preprint arXiv:cs/0103014},
year = {2015}
}
备注
13 pages, 5 figures, 2001 Photonic West Plenary Talk