dorsal/arxiv
View SchemaPropagation of Fronts and Information in Dispersive Media
| Authors | Shi-Yao Zhu, Ya-Ping Yang, Li-Gang Wang, Nian-Hua Liu, M. Suhail Zubairy |
|---|---|
| Categories | |
| ArXiv ID | physics/0310026 |
| URL | https://arxiv.org/abs/physics/0310026 |
Abstract
We present a general proof based on Kramers-Kronig relations that, in a normal or anomalous dispersive linear medium, any (discontinuitynonanalytic disturbance) in an electromagnetic pulse can not propagate faster than the phase velocity, $c$. Consequently the information carried by the discontinuity (nonanalytical disturbance) can not be transmitted superluminally.
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"abstract": "We present a general proof based on Kramers-Kronig relations that, in a\nnormal or anomalous dispersive linear medium, any (discontinuitynonanalytic\ndisturbance) in an electromagnetic pulse can not propagate faster than the\nphase velocity, $c$. Consequently the information carried by the discontinuity\n(nonanalytical disturbance) can not be transmitted superluminally.",
"arxiv_id": "physics/0310026",
"authors": [
"Shi-Yao Zhu",
"Ya-Ping Yang",
"Li-Gang Wang",
"Nian-Hua Liu",
"M. Suhail Zubairy"
],
"categories": [
"physics.class-ph"
],
"title": "Propagation of Fronts and Information in Dispersive Media",
"url": "https://arxiv.org/abs/physics/0310026"
},
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