SUPERLUMINALITY, PARELECTRICITY, AND EARNSHAWS THEOREM IN MEDIA WITH INVERTED POPULATIONS

被引：47

作者：

CHIAO, RY

BOYCE, J

机构：

[1] Department of Physics, University of California, Berkeley

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 73卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.73.3383

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Population inversion leads to the phenomena of superluminality, in which wave packets can propagate dispersionlessly near dc faster than c, and parelectricity, in which the dc susceptibility is negative, implying the levitation of a charge above a parelectric medium. Also, charges placed in a cavity surrounded by a parelectric medium form stable configurations, in seeming violation of Earnshaw's theorem. Einstein causality is not violated. © 1994 The American Physical Society.

引用

页码：3383 / 3386

页数：4

共 11 条

[1]

BESSEMER P, 1994, AM J PHYS, V62, P657

[2] 2 THEOREMS FOR THE GROUP-VELOCITY IN DISPERSIVE MEDIA [J].

BOLDA, EL ;

CHIAO, RY ;

GARRISON, JC .

PHYSICAL REVIEW A, 1993, 48 (05) :3890-3894

[3]

BOLDA EL, 1994, PHYS REV A, V449, P2938

[4]

Brillouin L, 1960, WAVE PROPAGATION GRO, DOI [10.1063/1.3057398, DOI 10.1063/1.3057398]

[5] SUPERLUMINAL (BUT CAUSAL) PROPAGATION OF WAVE-PACKETS IN TRANSPARENT MEDIA WITH INVERTED ATOMIC POPULATIONS [J].

CHIAO, RY .

PHYSICAL REVIEW A, 1993, 48 (01) :R34-R37

[6]

CHIAO RY, IN PRESS ANN NY ACAD

[7]

GORDON JP, 1954, PHYS REV, V95, pL282

[8]

Landau L. D., 1984, ELECTRODYNAMICS CONT, V2nd

[9] IMAGE THEORY FOR ELECTROSTATIC AND MAGNETOSTATIC PROBLEMS INVOLVING A MATERIAL SPHERE [J].

LINDELL, IV .

AMERICAN JOURNAL OF PHYSICS, 1993, 61 (01) :39-44

[10] DISPERSIONLESS, HIGHLY SUPERLUMINAL PROPAGATION IN A MEDIUM WITH A GAIN DOUBLET [J].

STEINBERG, AM ;

CHIAO, RY .

PHYSICAL REVIEW A, 1994, 49 (03) :2071-2075

← 1 2 →