Energy transport in dispersive media and superluminal group velocities

被引：33

作者：

Diener, G

机构：

[1] Technische Universität Dresden, Inst. für Theoretische Physik

来源：

PHYSICS LETTERS A | 1997年 / 235卷 / 02期

关键词：

energy velocity; dispersion; superluminal; waveguides; energy balance;

D O I：

10.1016/S0375-9601(97)00600-2

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A new definition of the energy transport velocity for waves in dispersive media is proposed. In general this velocity differs from the group velocity. It can never exceed the vacuum speed of light, not even in the case of superluminal group velocities. The concept also works in the case of waveguides. (C) 1997 Elsevier Science B.V.

引用

页码：118 / 124

页数：7

共 7 条

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[4] Superluminal group velocities and information transfer
Diener, G
[J]. PHYSICS LETTERS A, 1996, 223 (05) : 327 - 331
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[6] Landau L. D., 2013, Electrodynamics of Continuous Media, V8
[7] STEINBERG AM, 1994, PHYS REV A, V49, P2072

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