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arXiv 0907.5525quant-ph
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基于类Zeno测量的半经典动力学

Semiclassical Dynamics from Zeno-Like measurements

R. Rossi, K. M. Fonseca, Romero M. C. Nemes

摘要:

原子-场动力学通常的半经典近似是把场算符换成与(假定足够大的)场强度有关的复数。我们表明,耦合系统的半经典演化总是可以通过频繁的一个子系统的状态上的Zeno样的测量,独立于在给定的例子中的场强。我们从这个角度来研究Jaynes Cummings模型。

英文摘要:

The usual semiclassical approximation for atom-field dynamics consists in substituting the field operators by complex numbers related to the (supposedly large enough) intensity of the field. We show that a semiclassical evolution for coupled systems can always be obtained by frequent Zeno-like measurements on the state of one subsystems, independently of the field intensity in the example given. We study the Jaynes Cummings model from this perspective.

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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