arXiv 1010.57652010-10-27gr-qc

宇宙学不对称性的量子起源

The quantum origins of the cosmological asymmetry

Adolfo De Unánue

备注：: Ph. D. thesis in Spanish

摘要：

作为暴胀阶段量子涨落结果的宇宙结构起源的标准暴胀版本并不完全令人满意：宇宙到底如何从均匀和各向同性阶段过渡到量子不确定性变成实际非均匀的阶段？波动？关键是，在这方面，暴胀的预言在任何已知的量子物理方案中都不能得到充分的证明。在[A]中提出了一项建议。Perez，H. Sahlmann和D. Sudarsky，Classical and量子引力23，2317（2006）]通过调用类似于暴胀子场的各种模式的量子机械波函数的坍缩的过程来解决这个问题。这反过来又受到了R.彭罗斯讨论了量子引力在导致量子力学标准幺正演化崩溃中可能扮演的角色。在这项工作中，我们提出并研究了一个新的崩溃计划，遵循的相关性表明在维格纳功能的初始状态。此外，在他的论文工作中，我们将专注于更详细的研究三个崩溃方案（鲁棒性，多次崩溃）和他们可能会留下的痕迹上的观测数据。

英文摘要：

The standard inflationary version of the origin of the cosmic structure as the result of the quantum fluctuations during the inflationary stage is less than fully satisfactory: how exactly does the Universe transit from a homogeneous and isotropic stage to one where the quantum uncertainties become actual inhomogeneous fluctuactions? The point is that the predictions of inflation in this regard cannot be fully justified in any known scheme of quantum physics. A proposal was made in [A. Perez, H. Sahlmann and D. Sudarsky, Classical and Quantum Gravity 23, 2317 (2006)] to solve this problem by invoking a process similar to the collapse of the quantum mechanical wave function of the various modes of the inflaton field. This in turn was inspired by ideas of R. Penrose about the roles that quantum gravity might play in bringing about such breakdown of standard unitary evolution of quantum mechanics. In this work we propose and study a new collapse scheme that follows the correlations indicated in the Wigner functional of the initial state. Furthermore, in his thesis work we will focus on a more detailed study of three collapse schemes (robustness, multiple collapses) and on the traces they might leave on the observational data.

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英文摘要：

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