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arXiv physics/0702195physics.optics
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双脉冲干涉与超发光

Two-pulse interference and superluminality

Bruno Macke, Bernard Ségard

摘要:

我们研究了如何干涉的相干光脉冲与其稍微延迟的副本可能会产生一个脉冲几乎相同的原始之一,并提前it.The简单的2脉冲系统使我们能够获得精确的解析表达式的脉冲失真,有效的脉冲形状的广泛的一类。明确的结果给出了通常考虑的脉冲(高斯,双曲正割),但也为更现实的脉冲的严格限制的持续时间。我们最后表明,2脉冲系统的效率是可比的其他超光速系统,至少在光学实验中实际证明的脉冲进步。

英文摘要:

We examine how the interference of a coherent light-pulse with its slightly time-delayed copy may generate a pulse nearly identical to the original one and ahead of it. The simplicity of this 2-pulse system enabled us to obtain exact analytic expressions of the pulse distortion, valid for a wide class of pulse shapes. Explicit results are given for the pulses usually considered (gaussian, hyperbolic secant) but also for more realistic pulses of strictly limited duration. We finally show that the efficiency of the 2-pulse system is comparable to that of the other superluminal systems, at least for the pulse advancements actually demonstrated in the optical experiments.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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