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arXiv 1405.2146gr-qc
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弯曲时空中的量子化条件与不确定性驱动的暴胀

The Quantization Conditions in Curved Spacetime and Uncertainty Driven Inflation

Paul J. Camp, John L. Safko

摘要:

在考虑弯曲背景时空中的不确定原理形式的基础上,提出了另一种暴胀模型。一个参数提出建议可能的曲率依赖于正确的交换子关系的量子场在经典的背景下,不能推导出简单的外推从平坦的时空理论。为了评估这种依赖性的可能后果,我们将这一思想应用于封闭的弗里德曼-罗伯逊-沃克背景中的标量场,使用一个简单的曲率依赖性模型(同时,修正了Bunch(1980)以前对几何展开的波函数得到的结果)。结果是一个依赖于时间的宇宙学常数,产生了大量的膨胀,而这种膨胀与物质场的质量或其有效势无关。此外,可以看出,场模式最初为零的所有波长和形成的宇宙演变。从这个意义上说,宇宙从它自己的膨胀中创造了它的内容。在这个过程的最后,物质场远离平衡,基本上再现了新暴胀模型的初始条件。

英文摘要:

An alternative inflationary model is proposed predicated upon a consideration of the form of the uncertainty principle in a curved background spacetime. An argument is presented suggesting a possible curvature dependence in the correct commutator relations for a quantum field in a classical background which cannot be deduced by simply extrapolation from the flat spacetime theory. To assess the possible consequences of this dependence, we apply the idea to a scalar field in a closed Friedmann-Robertson-Walker background, using a simple model for the curvature dependence (along the way, a previous result obtained by Bunch (1980) for the adiabatically expanded wave function is corrected). The result is a time-dependent cosmological constant, producing a vast amount of inflation that is independent of the mass of the matter field or its effective potential. Furthermore, it is seen that the field modes are initially zero for all wavelengths and come into being as the universe evolves. In this sense, the universe creates its contents out of its own expansion. At the end of the process, the matter field is far from equilibrium and essentially reproduces the initial conditions for the New Inflationary Model.

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