Superluminal group velocities and information transfer

被引：107
作者：
Diener, G
机构：
[1] Inst. für Theoretische Physik, Technische Universität Dresden
来源：
PHYSICS LETTERS A | 1996年 / 223卷 / 05期
关键词：
group velocity; tunneling; signal transfer; causality;
D O I：
10.1016/S0375-9601(96)00767-0
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
It is well established that the group velocity of wave propagation can exceed the vacuum speed of light. However, in such cases the group velocity cannot be interpreted as a velocity of information transfer. The phenomenon essentially consists in an analytic continuation of the pulse shape available within the light cone.
引用
收藏
页码：327 / 331
页数：5
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