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arXiv 2301.01075hep-th
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使用 Dirac 括号研究有质量引力中的信息全息原理

Holography of information in massive gravity using Dirac brackets

Joydeep Chakravarty, Diksha Jain, Akhil Sivakumar

AI总结:

本文使用 Dirac 括号研究了线性化有质量引力中的信息全息原理,发现与无质量引力不同,有质量引力中边界算子无法提取体信息,并揭示了缺乏微分同胚不变性导致局部体算子对边界隐藏,为蒸发黑洞研究提供启示。

摘要:

信息全息原理指出,在无质量引力中,可以使用渐近边界算子提取体信息。在我们的工作中,我们在关于空平坦空间的线性化设定中研究了这一原理,并使用边界 Hamiltonian 与体算子之间的 Dirac 括号对其进行了表述。然后,我们探讨了平坦空间线性化有质量引力中体信息的存储是否类似于无质量引力。对于线性化无质量引力,使用 Dirac 括号,我们恢复了信息全息原理的必要判据。相比之下,我们表明,对于有质量引力,相关边界可观测量与体算子的 Dirac 括号为零。我们利用这一重要区别来勾勒规范 Hilbert 空间。这导致了分裂态,因此,在有质量引力中,人们无法使用渐近边界可观测量来提取体信息。我们还直接论证了分裂性质,而没有明确提及 Hilbert 空间。该结果表明,我们可以在有质量引力中构造局部体算子,由于缺乏微分同胚不变性,这些算子对边界可观测量是隐藏的。我们的分析为 islands 提议背景下的蒸发黑洞提供了一些启示。

英文摘要:

The principle of holography of information states that in massless gravity, it is possible to extract bulk information using asymptotic boundary operators. In our work, we study this principle in a linearized setting about empty flat space and formulate it using Dirac brackets between boundary Hamiltonian and bulk operators. We then address whether the storage of bulk information in flat space linearized massive gravity resembles that of massless gravity. For linearized massless gravity, using Dirac brackets, we recover the necessary criteria for the holography of information. In contrast, we show that the Dirac bracket of the relevant boundary observable with bulk operators vanishes for massive gravity. We use this important distinction to outline the canonical Hilbert space. This leads to split states, and consequently, one cannot use asymptotic boundary observables to extract bulk information in massive gravity. We also argue the split property directly without an explicit reference to the Hilbert space. The result reflects that we can construct local bulk operators in massive gravity, which are obscured from boundary observables due to the lack of diffeomorphism invariance. Our analysis sheds some light on evaporating black holes in the context of the islands proposal.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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