D膜韧致辐射
D-brane Bremsstrahlung
摘要：
我们研究超相对论D膜的动力学。主要的现象是韧致辐射：闭合弦相互作用引起的轻微加速度通过无质量闭合弦的辐射触发了极快的能量损失。在D维时空中的一般k维扩展对象表征韧致辐射后，我们将特定于D膜的效应，包括速度依赖力和开弦对的产生。然后，我们表明，由于韧致辐射耗散可以大大改变动态DBI通货膨胀。
英文摘要：
We study the dynamics of ultrarelativistic D-branes. The dominant phenomenon is bremsstrahlung: mild acceleration induced by closed string interactions triggers extremely rapid energy loss through radiation of massless closed strings. After characterizing bremsstrahlung from a general k-dimensional extended object in a D-dimensional spacetime, we incorporate effects specific to D-branes, including velocity-dependent forces and open string pair creation. We then show that dissipation due to bremsstrahlung can substantially alter the dynamics in DBI inflation.
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