Closed string emission from unstable D-brane with background electric field
Closed string emission from unstable D-brane with background electric field
复制标题
背景电场不稳定 D 膜的闭合弦发射
DOI：
10.1088/1126-6708/2004/01/005
复制
发表时间：
2003
影响因子：
5.4
通讯作者：
K. Nagami
中科院分区：
文献类型：
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作者：
K. Nagami
在玻色弦理论中，我们研究了具有恒定背景电场的不稳定DP膜的闭弦辐射。在电场存在的情况下，显式地计算了发射出的闭合弦的平均总数密度和平均总能量密度。结果表明，当背景电场打开时，紫外区的能量密度是有限的，与弱弦耦合极限下的D膜张力相比，电场存在时转换成闭弦的能量密度小得可以忽略.
We study the closed string emission from an unstable Dp-brane with constant background electric field in bosonic string theory. The average total number density and the average total energy density of emitted closed strings are explicitly calculated in the presence of electric field. It is explicitly shown that the energy density in the UV region becomes finite whenever the background electric field is switched on. The energy density converted into closed strings in the presence of electric field is negligibly small compared with the D-brane tension in the weak string coupling limit.