Information is not lost in the evaporation of 2D black holes.
Information is not lost in the evaporation of 2D black holes.
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DOI：
10.1103/physrevlett.100.211302
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发表时间：
2008-01
影响因子：
8.6
通讯作者：
A. Ashtekar;V. Taveras;M. Varadarajan
中科院分区：
文献类型：
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作者：
A. Ashtekar;V. Taveras;M. Varadarajan
我们从量子几何的角度分析了Callan-Gidding-Harvey-Strominger黑洞的Hawking蒸发，结果表明信息不会丢失，这主要是因为量子时空比经典黑洞大得多。利用适当的近似从量子时空中提取物理，我们证明：(I)量子时空的未来零无限足够长，使得过去的真空在未来演化到一个纯态，(Ii)这个态在未来的Fock空间中有一个有限的范数，以及(Iii)所有的信息都是在未来的无穷大出来的，没有残余物。
We analyze Hawking evaporation of the Callan-Giddings-Harvey-Strominger black holes from a quantum geometry perspective and show that information is not lost, primarily because the quantum space-time is sufficiently larger than the classical. Using suitable approximations to extract physics from quantum space-times we establish that (i) the future null infinity of the quantum space-time is sufficiently long for the past vacuum to evolve to a pure state in the future, (ii) this state has a finite norm in the future Fock space, and (iii) all the information comes out at future infinity; there are no remnants.