Stochastic gravitational-wave background from axion-monodromy oscillons in string theory during preheating
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| 论文题目: |
Stochastic gravitational-wave background from axion-monodromy oscillons in string theory during preheating |
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| 作者: |
Sang, Yu; Huang, Qing-Guo |
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PHYSICAL REVIEW D |
| 年: |
2019 |
| 卷: |
100 |
| 期: |
6 |
| 页: |
63516 |
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| 摘要: |
Axion monodromy is a generic phenomenon in string compactifications. We investigate the production of gravitational-wave background from axion monodromy inflation during preheating. By performing lattice simulations using pseudospectral methods, we fmd that significant single-peak stochastic gravitational-wave backgrounds are generated during preheating for asymptotic linear vertical bar phi vertical bar and phi(2/3) potentials in axion monodromy inflation and cuspy potentials. This may allow us to explore string compactifications through gravitational waves. |
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