Continuous spontaneous localization wave function collapse model as a mechanism for the emergence of cosmological asymmetries in inflation
Continuous spontaneous localization wave function collapse model as a mechanism for the emergence of cosmological asymmetries in inflation
复制标题
连续自发局域化波函数塌缩模型作为暴胀中宇宙学不对称性出现的机制
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
D. Sudarsky
中科院分区：
文献类型：
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作者：
Pedro Cañate;P. Pearle;D. Sudarsky
宇宙结构萌芽的膨胀解释并不能真正解释原始各向异性和不均质性的产生。这种描述从对称的背景开始，引用了对称的动力学，所以它不能解释不对称。为了产生不对称性，我们给出了膨胀背景下波函数崩塌的连续自发局域化模型的一个应用。量子动力学的这种修正在膨胀子场微扰的演化中引入了一个随机的非么正分量。这导致从一个均匀和各向同性的阶段进入另一个阶段，在这个阶段，膨胀初始状态中的量子不确定性转变为原始的不均匀和各向异性。我们表明，通过适当选择坍缩生成算符，可以实现与宇宙微波背景辐射的精确观测相容。
The inflationary account for the emergence of the seeds of cosmic structure falls short of actually explaining the generation of primordial anisotropies and inhomogeneities. This description starts from a symmetric background, and invokes symmetric dynamics, so it cannot explain asymmetries. To generate asymmetries, we present an application of the continuous spontaneous localization model of wave function collapse in the context of inflation. This modification of quantum dynamics introduces a stochastic nonunitary component to the evolution of the inflaton field perturbations. This leads to passage from a homogeneous and isotropic stage to another, where the quantum uncertainties in the initial state of inflation transmute into the primordial inhomogeneities and anisotropies. We show, by proper choice of the collapse-generating operator, that it is possible to achieve compatibility with the precise observations of the cosmic microwave background radiation.