论文标题
关于brane世界中宇宙弦的本质
On the nature of cosmic strings in the brane world
论文作者
论文摘要
我们研究了一个静态的，圆柱形的对称宇宙弦，而无需扰动近似。我们发现，当字符串中心的能量密度大于Brane张力的两倍时，（有效的）弦张力可能会增强（有效的）弦张力。我们还指出了一种新的方法来逃避宇宙弦问题时，当弦的中心的能量密度接近两倍的棕褐色张力时。这些发现可能对在勃褐色上寻找宇宙字符串的实验性和理论意义，尤其是在膨胀后产生的宇宙字符串（例如D-Term Efflation）在Brane上产生的宇宙字符串。
We investigate a static, cylindrically symmetric cosmic string on the brane without a perturbative approximation. We find there could be a (large) enhancement of the (effective) string tension when the energy density at the center of the string is (much) larger than twice the brane tension. We also point out a new way to evade the cosmic string problem when the energy density at the center of the string approaches twice the brane tension. These findings could have experimental and theoretical implications for searching for cosmic strings on the brane, in particular for cosmic strings generated after inflation (such as D-term inflation) on the brane.
