多粒子态的Unruh效应与黑洞辐射  

Unruh effect of multiparticle states and black hole radiation

作　　者：王健羽 Jianyu Wang(Department of Astronomy,School of Physical Sciences,University of Science and Technology of China,Hefei 230026,China;CAS Key Laboratory for Researches in Galaxies and Cosmology,University of Science and Technology of China,Hefei 230026,China;School of Astronomy and Space Science,University of Science and Technology of China,Hefei 230026,China)

机构地区：[1]中国科学技术大学物理学院天文学系,安徽合肥230026 [2]中国科学技术大学中科院星系与宇宙学重点实验室,安徽合肥230026 [3]中国科学技术大学天文与空间科学学院,安徽合肥230026

出　　处：《中国科学技术大学学报》2022年第6期39-47,I0002,I0003,共11页JUSTC

基　　金：supported by the National Key R&D Program of China (2021YFC2203100);the National Natural Science Foundation of China (11961131007, 11653002);the Fundamental Research Funds for the Central Universities(WK2030000044);the CSC Innovation Talent Funds;the CAS Project for Young Scientists in Basic Research (YSBR-006);the USTC Fellowship for International Cooperation;the USTC Research Funds of the Double First-Class Initiative。

摘　　要：摘要:本文讨论了量子场的Unruh效应,并研究了单模式q粒子态在Unruh效应下的能量以及纠缠性质。发现在非惯性系下,q粒子态|q, 0>α与闵氏时空的真空态|0, 0>α有相似的能量谱性质,但它们有完全不同的纠缠性质。据此,提出了一个黑洞辐射模型,假设黑洞视界附近量子态呈现这种q粒子态的形式。计算了该模型下黑洞辐射熵的演化,其结果与Page曲线相吻合。因此该模型可以作为黑洞信息丢失问题的一种可能解释。In this study, we investigated the field under the Unruh effect. The energy and entanglement properties of the single-mode-particle states were discussed. We found that in the non-inertial reference frame q |q, 0>αstates exhibit a similar energy spectrum to vacuum|0, 0>α, but with different entanglement properties. With respect to an application, we proposed a black hole radiation model, assuming that states near the horizon are constructed via-particle states. We calculated the evolution of the entanglement entropy of radiation and proved that our model can reproduce the Page curve.Hence, this can be considered as an indication solution of the black hole information paradox.

关 键 词：黑洞 Unruh效应 量子信息 

分 类 号：P14[天文地球—天体物理] O41[天文地球—天文学]