Shvartsburg A B, Marklund M, Brodin G, Stenflo L
Joint Institute of High Temperatures, Russian Academy of Sciences, Moscow, Russian Federation.
Phys Rev E Stat Nonlin Soft Matter Phys. 2008 Jul;78(1 Pt 2):016601. doi: 10.1103/PhysRevE.78.016601. Epub 2008 Jul 8.
Tunneling of microwaves through a smooth barrier in a transmission line is considered. In contrast to standard wave barriers, we study the case where the dielectric permittivity is positive, and the barrier is caused by the inhomogeneous dielectric profile. It is found that reflectionless, superluminal tunneling can take place for waves with a finite spectral width. The consequences of these findings are discussed, and an experimental setup testing our predictions is proposed.
本文考虑了微波在传输线中通过光滑势垒的隧穿现象。与标准波势垒不同，我们研究的情况是介电常数为正，且势垒由非均匀介电分布引起。研究发现，对于具有有限光谱宽度的波，可以发生无反射、超光速隧穿。讨论了这些发现的后果，并提出了一个测试我们预测的实验装置。
