Topological inflation in supergravity
Topological inflation in supergravity
复制标题
超引力中的拓扑膨胀
DOI：
10.1103/physrevd.62.123507
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发表时间：
2000
影响因子：
5
通讯作者：
T. Yanagida
中科院分区：
文献类型：
--
作者：
M. Kawasaki;N. Sakai;Masahide Yamaguchi;T. Yanagida
研究了超引力中的拓扑暴胀模型。通过数值模拟，证实了在超引力中拓扑暴胀是可以发生的。我们还指出，暴胀成功的条件不仅取决于暴胀子场的真空期望值（VEV），而且还取决于暴胀子场的K“ahler势的形式.事实上，我们发现暴胀子$\phi$所需的VEV可以小到$ \simeq 1 \times M_G$，这里$M_{G}$是引力标度。
We investigate a topological inflation model in supergravity. By means of numerical simulations, it is confirmed that topological inflation can take place in supergravity. We also show that the condition for successful inflation depends not only on the vacuum-expectation value (VEV) of inflaton field but also on the form of its K\"ahler potential. In fact, it is found that the required VEV of the inflaton $\phi$ can be as small as $ \simeq 1 \times M_G$, where $M_{G}$ is the gravitational scale.