Riemannian light cone from vanishing birefringence in premetric vacuum electrodynamics -: art. no. 105022

被引：71
|
作者：
Lämmerzahl, C
Hehl, FW
机构：
[1] Univ Bremen, Ctr Adv Space Technol & Micrograv ZARM, D-28359 Bremen, Germany
[2] Univ Cologne, Inst Theoret Phys, D-50923 Cologne, Germany
[3] Univ Missouri, Dept Phys & Astron, Columbia, MO 65211 USA
来源：
PHYSICAL REVIEW D | 2004年 / 70卷 / 10期
关键词：
D O I：
10.1103/PhysRevD.70.105022
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We consider premetric electrodynamics with a local and linear constitutive law for the vacuum. Within this framework, we find quartic Fresnel wave surfaces for the propagation of light. If we require (i) the Fresnel equation to have only real solutions and (ii) the vanishing of birefringence in vacuum, then a Riemannian light cone is implied. No proper Finslerian structure can occur. This is generalized to dynamical equations of any order.
引用
收藏
页码：105022 / 1
页数：7
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