Anatomy of geometrical destabilization of inflation

被引：2
作者：
Krajewski, Tomasz [1 ]
Turzynski, Krzysztof [1 ]
机构：
[1] Univ Warsaw, Fac Phys, Inst Theoret Phys, Pasteura 5, PL-02093 Warsaw, Poland
来源：
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2022年 / 10期
关键词：
inflation; physics of the early universe; supersymmetry and cosmology; DENSITY PERTURBATIONS; UNIVERSE SCENARIO; PHASE-TRANSITION; DOMAIN-WALLS; FLUCTUATIONS; COSMOLOGY; EVOLUTION; DYNAMICS; FLATNESS; HORIZON;
D O I：
10.1088/1475-7516/2022/10/064
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study geometrical destabilization of inflation with the aim of determining the fate of excited unstable modes. We use numerical lattice simulations to track the dynamics of both the inflaton and the spectator field. We find that geometrical destabilization is a short-lived phenomenon and that a negative feedback loop prevents field fluctuations from growing indefinitely. As a result, fields undergoing geometrical destabilization are merely shifted to a new classical configuration corresponding to a uniform value of the spectator field within a Hubble patch.
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页数：21
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