Stochastic Dynamics of New Inflation
Stochastic Dynamics of New Inflation
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新通货膨胀的随机动力学
DOI：
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发表时间：
1988
期刊：
影响因子：
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通讯作者：
M. Sasaki
中科院分区：
文献类型：
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作者：
K. Nakao;Y. Nambu;M. Sasaki
我们用Starobinsky提出的随机方法的扩展形式深入研究了膨胀·驱动标量场的动力学，并讨论了膨胀宇宙的时空结构。为了避免量子引力可能产生的任何复杂情况，我们集中讨论了新的宇宙膨胀情景，其中涉及的所有能量标度都远低于普朗克质量。调查既有分析的，也有数字的。特别地，我们给出了相空间上随机标量场动力学的完整的数值分析。然后讨论了这一结果的含义。
We investigate thoroughly the dynamics of an inflation· driving scalar field in terms of an extended version of the stochastic approach proposed by Starobinsky and discuss the spacetime structure of the inflationary universe. To avoid any complications which might arise due to quantum gravity, we concentrate our discussion on the new inflationary universe scenario in which all the energy scales involved are well below the Planck mass. The investigation is done both analytically and numerically. In particular, we present a full numerical analysis of the stochastic scalar field dynamics on the phase space. Then implications of the results are discussed.