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arXiv 0808.0089quant-ph
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迷宫中的量子涨落

Quantum fluctuations in the mazer

Jonas Larson

摘要:

考虑了由原子运动或量子化腔内场引起的脉泽中的量子涨落。分析结果,为meza和双曲正割模式的配置文件,预测,例如,由于这种波动的隧穿共振的衰减。采用波包传播方法对高斯模式分布的情况进行了数值研究。该方法自动考虑原子运动的波动,特别是考虑在隧道共振处或附近的动力学。我们发现系统的演化对原子-场失谐量非常敏感,由此引发了对该模型中绝热性概念的讨论。此外,还证明了一种新型的坍缩-复活现象,它起源于原子运动的量子涨落,而不是通常情况下的场涨落。

英文摘要:

Quantum fluctuations in the mazer are considered, arising either from the atomic motion or from the quantized intracavity field. Analytical results, for both the meza and the hyperbolic secant mode profile, predict for example an attenuation of tunneling resonances due to such fluctuations. The case of a Gaussian mode profile is studied numerically using a wave packet propagation approach. The method automatically takes into account fluctuations in the atomic motion and the dynamics is especially considered at or adjacent to a tunnel resonance. We find that the system evolution is greatly sensitive to the atom-field detuning, bringing about a discussion about the concept of adiabaticity in this model. Further, a novel collapse-revival phenomena is demonstrated, originating from the quantum fluctuations in the atomic motion rather from field fluctuations as is normally the case.

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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