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arXiv 1105.3258gr-qchep-thmath.DG
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Bondi-Sachs度量和光子火箭

Bondi-Sachs metrics and Photon Rockets

Huabin Ge, Mingxing Luo, Qiping Su, Ding Wang, Xiao Zhang

摘要:

研究了具有非零宇宙学常数的Bondi-Sachs火箭。我们观察到,系统的加速自然产生的(反)德西特时空的渐近对称性。假设先前在渐近平坦时空中引入的能量和质量概念是有效的,我们发现在某些特殊的邦迪-萨克斯火箭族中,纯辐射能的发射平衡了邦迪质量的损失,因此在这些火箭族中不存在引力辐射。

英文摘要:

We study the Bondi-Sachs rockets with nonzero cosmological constant. We observe that the acceleration of the systems arises naturally in the asymptotic symmetries of (anti-) de Sitter spacetimes. Assuming the validity of the concepts of energy and mass previously introduced in asymptotically flat spacetimes, we find that the emission of pure radiation energy balances the loss of the Bondi mass in certain special families of the Bondi-Sachs rockets, so in these there is no gravitational radiation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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