首页|Nonexistence of quantum black and white hole horizons in an improved dynamic approach

Nonexistence of quantum black and white hole horizons in an improved dynamic approach

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In this paper,we study the quantum geometric effects near the locations where classical black hole horizons used to appear in Einstein's classical theory,within the framework of an improved dynamic approach,in which the internal region of a black hole is modeled by the Kantowski-Sachs(KS)spacetime and the two polymerization parameters are functions of the phase space variables.Our detailed analysis shows that the effects are so strong that black and white hole horizons of the effective quantum theory do not exist at all and instead are replaced by transition surfaces,across which the metric coefficients and their inverses are smooth and remain finite,as are the corresponding curvatures,including the Kretschmann scalar.These surfaces always separate trapped regions from anti-trapped regions.The number of such surfaces is infinite,so the corresponding KS spacetimes become geodesically complete,and no black and white hole-like structures exist in this scheme.

canonical quantizationloop quantum gravityquantum aspects of black holes

Wen-Cong Gan、Xiao-Mei Kuang、Zhen-Hao Yang、Yungui Gong、Anzhong Wang、Bin Wang

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College of Physics and Communication Electronics,Jiangxi Normal University,Nanchang 330022,China

GCAP-CASPER,Physics Department,Baylor University,Waco 76798-7316,USA

Institute for Theoretical Physics & Cosmology,Zhejiang University of Technology,Hangzhou 310023,China

United Center for Gravitational Wave Physics(UCGWP),Zhejiang University of Technology,Hangzhou 310023,China

Center for Gravitation and Cosmology,College of Physical Science and Technology,Yangzhou University,Yangzhou 225009,China

Department of Physics,School of Physical Science and Technology,Ningbo University,Ningbo 315211,China

School of Aeronautics and Astronautics,Shanghai Jiao Tong University,Shanghai 200240,China

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Initial Research Foundation of Jiangxi Normal UniversityNumerical computations were performed on the public computing service platform provided by TianHe-2 through the Institute for ThNational Key Research and Development Program of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNatural Science Foundation of Jiangsu ProvinceNational Science Foundation

120228272020YFC2201504119752031207520211875136BK20211601PHY2308845

2024

中国科学:物理学 力学 天文学(英文版)
中国科学院

中国科学:物理学 力学 天文学(英文版)

CSTPCD
影响因子:0.91
ISSN:1674-7348
年,卷(期):2024.67(8)