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arXiv 0906.4046hep-thastro-ph.COgr-qc
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与背景无关的量子化和波的传播

Background independent quantization and wave propagation

Golam Mortuza Hossain, Viqar Husain, Sanjeev S. Seahra

摘要:

我们将一种与背景无关的“聚合物”量子化应用于平坦时空中的自由标量场。利用半经典态,我们发现了一个有效的波动方程,这是非线性和洛伦兹不变性破坏。我们解决这个方程微扰的物理利益的几种情况下,并表明,聚合物校正的克莱因-戈登方程的解决方案取决于场的振幅。这导致了一个有效的色散关系,取决于波包的振幅,频率和形状,因此不同于文献中发现的其他修改的色散关系。我们还表明,聚合物的影响往往会随着时间的积累,平面对称波形。最后,我们讨论的可能性,测量偏离克莱因-戈登方程的粒子加速器或天体物理观测。

英文摘要:

We apply a type of background independent "polymer" quantization to a free scalar field in a flat spacetime. Using semi-classical states, we find an effective wave equation that is both nonlinear and Lorentz invariance violating. We solve this equation perturbatively for several cases of physical interest, and show that polymer corrections to solutions of the Klein-Gordon equation depend on the amplitude of the field. This leads to an effective dispersion relation that depends on the amplitude, frequency and shape of the wave-packet, and is hence distinct from other modified dispersion relations found in the literature. We also demonstrate that polymer effects tend to accumulate with time for plane-symmetric waveforms. We conclude by discussing the possibility of measuring deviations from the Klein-Gordon equation in particle accelerators or astrophysical observations.

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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