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arXiv 0709.4610gr-qchep-th
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广义不确定原理框架下的微超空间动力学

Minisuperspace dynamics in a generalized uncertainty principle framework

Marco Valerio Battisti, Giovanni Montani

摘要:

在广义不确定原理的背景下,详细分析了Friedmann-Robertson-Walker(FRW)和Taub宇宙的小超空间动力学。特别是,波包的运动进行了调查,在这两个模型中,经典的奇异性出现概率抑制。此外,FRW波包以稳定的方式接近普朗克区域,并且没有出现环量子宇宙学中预测的大反弹的证据。另一方面,陶伯波包在预测各向同性宇宙方面提供了正确的行为。

英文摘要:

The minisuperspace dynamics of the Friedmann-Robertson-Walker (FRW) and of the Taub Universes in the context of a Generalized Uncertainty Principle is analyzed in detail. In particular, the motion of the wave packets is investigated and, in both the models, the classical singularity appear to be probabilistic suppressed. Moreover, the FRW wave packets approach the Planckian region in a stationary way and no evidences for a Big-Bounce, as predicted in Loop Quantum Cosmology, appear. On the other hand, the Taub wave packets provide the right behavior in predicting an isotropic Universe.

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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