New potentials for string axion inflation
New potentials for string axion inflation
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DOI：
10.1103/physrevd.93.083508
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发表时间：
2015-10
影响因子：
5
通讯作者：
Tatsuo C. Kobayashi;Akane Oikawa;Hajime Otsuka
中科院分区：
文献类型：
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作者：
Tatsuo C. Kobayashi;Akane Oikawa;Hajime Otsuka
在紧致于Calabi-Yau流形上的IIB型超弦理论的框架下，我们提出了一种新的具有复杂结构模的轴子暴胀。该膨胀子被认为是复结构模的轴子，其势来源于通过镜像Calabi-Yau流形的周期矢量出现的瞬时修正。通过包含瞬时修正和某些三态通量，轴子位移对称性被分解为离散对称性。我们提出的膨胀情景与K“Ahler模稳定化是相容的。我们还研究了复杂结构模膨胀情况下的典型再加热温度。
We propose a new type of axion inflation with complex structure moduli in the framework of type IIB superstring theory compactified on Calabi-Yau manifold. The inflaton is identified as the axion for the complex structure moduli whose potential is originating from instantonic corrections appearing through the period vector of mirror Calabi-Yau manifold. The axionic shift symmetry is broken down to the discrete one by the inclusion of instantonic correction and certain three-from fluxes. Our proposed inflation scenario is compatible with K\"ahler moduli stabilization. We also study a typical reheating temperature in the case of complex structure moduli inflation.