Tachyonlike excitations in inverted two-level media

被引：75

作者：

Chiao, RY ^{[1
]}

Kozhekin, AE ^{[1
]}

Kurizki, G ^{[1
]}

机构：

[1] WEIZMANN INST SCI,DEPT CHEM PHYS,IL-76100 REHOVOT,ISRAEL

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.77.1254

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Electromagnetic fields dressed by inverted two-level atoms become tachyonlike excitations with group velocities which are faster than c, infinite, or negative. Such excitations describe the stable modes of the medium when it is weakly probed off resonance. The launching of these tachyonlike excitations is discussed, along with a proposed experiment to observe them. Their existence does not violate Einstein causality.

引用

页码：1254 / 1257

页数：4

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