期刊
PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS
卷 2017, 期 3, 页码 -出版社
OXFORD UNIV PRESS INC
DOI: 10.1093/ptep/ptx022
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资金
- Ministry of Education, Science, Sports, and Culture of Japan [16K05344]
- Japan Society for the Promotion of Science (JSPS) [26247042]
- Grants-in-Aid for Scientific Research [26247042, 16K05344] Funding Source: KAKEN
For asymptotically flat spacetimes, using the inverse mean curvature flow we show that any compact 2-surface, S-0, whose mean curvature and its derivative for the outward direction are positive in a spacelike hypersurface with non-negative Ricci scalar satisfies the inequality A(0) <= 4 pi(3Gm)(2), where A(0) is the area of S-0 and m is the total mass. The upper bound is realized when S-0 is the photon sphere in a hypersurface isometric to a t = const. slice of the Schwarzschild spacetime.
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