论文标题
局外人对DE Sitter空间中信息恢复的看法
An Outsider's Perspective on Information Recovery in de Sitter Space
论文作者
论文摘要
纠缠岛在我们对鹰辐射如何编码黑洞中的信息的理解中起着至关重要的作用，但是它们在宇宙学的相关性不太清楚。在本文中，我们继续研究De Sitter空间中信息恢复的研究，并构建了一个二维重力模型，该重力模型包含一个域壁，该域壁在De Sitter Space和Rindler空间之间进行了插值。 Rindler楔子引入了可以从中探测出弱的渐近区域，从中可以探测出De Sitter空间，从而产生了宇宙学视野的外部视角。与较早的作品相反，通过考虑仅在有限的时间内打破束davies状态的热平衡的量子状态，反应效应受到控制。这允许以受控的方式从吉本斯的辐射中解码信息。
Entanglement islands play a crucial role in our understanding of how Hawking radiation encodes information in a black hole, but their relevance in cosmological spacetimes is less clear. In this paper, we continue our investigation of information recovery in de Sitter space and construct a two-dimensional model of gravity containing a domain wall that interpolates between de Sitter space and Rindler space. The Rindler wedges introduce weakly-gravitating asymptotic regions from which de Sitter space can be probed, yielding an outside perspective of the cosmological horizon. In contrast to earlier works, backreaction effects are under control by considering a quantum state that only breaks the thermal equilibrium of the Bunch-Davies state for a finite time. This allows information to be decoded from the Gibbons-Hawking radiation in a controlled fashion.
