Upper bound for entropy in asymptotically de Sitter space-time

Kengo Maeda, Tatsuhiko Koike, Makoto Narita, Akihiro Ishibashi

研究成果: Article

25 引用 (Scopus)

抄録

We investigate the nature of asymptotically de Sitter space-times containing a black hole. We show that if the matter fields satisfy the dominant energy condition and cosmic censorship holds in the considered space-time, the area of the cosmological event horizon for an observer approaching a future timelike infinity does not decrease; i.e., the second law is satisfied. We also show under the same conditions that the total area of the black hole and the cosmological event horizon, a quarter of which is the total Bekenstein-Hawking entropy, is less than 12π/Λ, where Λ is the cosmological constant. The physical implications are also discussed.

元の言語English
ページ(範囲)3503-3508
ページ数6
ジャーナルPhysical Review D - Particles, Fields, Gravitation and Cosmology
57
発行部数6
出版物ステータスPublished - 1998 3 15
外部発表Yes

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event horizon
Black Holes
Horizon
Space-time
Entropy
entropy
Upper bound
Cosmological Constant
infinity
Observer
Infinity
Decrease
Energy
energy

ASJC Scopus subject areas

  • Mathematical Physics
  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

これを引用

Upper bound for entropy in asymptotically de Sitter space-time. / Maeda, Kengo; Koike, Tatsuhiko; Narita, Makoto; Ishibashi, Akihiro.

:: Physical Review D - Particles, Fields, Gravitation and Cosmology, 巻 57, 番号 6, 15.03.1998, p. 3503-3508.

研究成果: Article

Maeda, Kengo ; Koike, Tatsuhiko ; Narita, Makoto ; Ishibashi, Akihiro. / Upper bound for entropy in asymptotically de Sitter space-time. :: Physical Review D - Particles, Fields, Gravitation and Cosmology. 1998 ; 巻 57, 番号 6. pp. 3503-3508.
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