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arXiv 0812.3488hep-th
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非对易量子宇宙学

Noncommutative Quantum Cosmology

C. Bastos, O. Bertolami, N. Dias, J. Prata

摘要:

一个是在Kantowski-Sachs(KS)小超空间模型的背景下,提出了量子宇宙学的相空间非对易扩展。我们通过ADM形式和一个合适的Seiberg-Witten映射得到了非对易系统的Wheeler-DeWitt(WDW)方程。由此产生的WDW方程显式地依赖于相空间非对易参数$θ$和$η$。数值解的非交换WDW方程的发现,有趣的是,也有界的非交换参数的值。此外,我们的结论是,在动量部门的非对易性导致阻尼波函数,这意味着这种类型的非对易性可以为宇宙的可能的初始状态的选择有关。

英文摘要:

One presents a phase-space noncommutative extension of Quantum Cosmology in the context of a Kantowski-Sachs (KS) minisuperspace model. We obtain the Wheeler-DeWitt (WDW) equation for the noncommutative system through the ADM formalism and a suitable Seiberg-Witten map. The resulting WDW equation explicitly depends on the phase-space noncommutative parameters, $θ$ and $η$. Numerical solutions of the noncommutative WDW equation are found and, interestingly, also bounds on the values of the noncommutative parameters. Moreover, we conclude that the noncommutativity in the momenta sector leads to a damped wave function implying that this type of noncommutativity can be relevant for a selection of possible initial states for the 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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