CAUSALITY BETWEEN CONDUCTING PLATES

被引：19

作者：

BENMENAHEM, S

机构：

[1] Stanford Linear Accelerator Center, Stanford University, Stanford

来源：

PHYSICS LETTERS B | 1990年 / 250卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(90)91167-A

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A two-loop QED effect, uncovered by Scharnhorst, causes the phase and group velocities of an electromagnetic wave with ω≪me to slightly exceed c, when the wave is travelling in vacuo between, and perpendicular to, two parallel conducting plates. Using causal rather than Feynman graphs, we show that the wavefront still travels at exactly c. The two-loop effect thus poses no threat to causality in QED. © 1990.

引用

页码：133 / 138

页数：6

共 6 条

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BARTON, G
[J]. PHYSICS LETTERS B, 1990, 237 (3-4) : 559 - 562
[2] Bjorken J., 1965, RELATIVISTIC QUANTUM
[3] QED BETWEEN CONDUCTING PLATES - CORRECTIONS TO RADIATIVE MASS AND G-2
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[J]. PHYSICS LETTERS B, 1990, 236 (03) : 354 - 359
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YANG, CN
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