Gravity theories with lightlike sources in D=3
Gravity theories with lightlike sources in D=3
复制标题
D=3 中类光源的引力理论
DOI：
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发表时间：
1992
期刊：
影响因子：
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通讯作者：
A. Steif
中科院分区：
文献类型：
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作者：
S. Deser;A. Steif
由类光粒子源产生的拓扑大质量引力及其极限-爱因斯坦引力和纯引力陈-西蒙斯模型-的时空都是通过求解场方程和静态度规的无限提升得到的。由此产生的几何是第一个已知的解决方案的拓扑质量的引力是渐近平坦的，并产生紧凑的物质来源。描述各种多光子解决方案的显式度量也来自。对于Einstein引力，作者也通过Minkowski空间的零提升识别构造了这样的解，从而得到了源的能量极限。
Spacetimes generated by a lightlike particle source for topologically massive gravity and its limits-Einstein gravity and the pure gravitational Chern-Simons model-are obtained both by solving the field equations and by infinite boosts of static metrics. The resulting geometries are the first known solutions of topologically massive gravity that are asymptotically flat and generated by compact matter sources. Explicit metrics describing various multiphoton solutions are also derived. For Einstein gravity, the authors also construct such solutions by null boost identifications of Minkowski space and thereby obtain limits on the energies of the sources.