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The Covariant Entropy Bound and the Higher-Dimensional FRW Universe

協變熵限和高維FRW宇宙

摘要


我們計算高維時空FRW宇宙的協變熵限。令a(t)和b(t)分別代表為四維時空和額外維度的刻度因子,若b(t)=ka^n(t),則我們會找到一些限制條件。

並列摘要


We calculate the covariant entropy bound for the Friedmann-Robertson-Walker (FRW) universe in higher-dimensional space-time. Let a(t) and b(t) represent the scale factor of the four-dimensional space-time and the extra dimensions respectively. Assuming b(t)=κa^n(t)(n < 0), then some constraints are obtained.

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