Novel Phenomena of the Hartle–Hawking Wave Function

Autor: Subeom Kang, Wan-il Park, Dong-han Yeom
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Symmetry, Vol 16, Iss 4, p 444 (2024)
Druh dokumentu: article
ISSN: 2073-8994
02671417
DOI: 10.3390/sym16040444
Popis: We find a novel phenomenon in the solution to the Wheeler–DeWitt equation by solving numerically the equation assuming O(4)-symmetry and imposing the Hartle–Hawking wave function as a boundary condition. In the slow-roll limit, as expected, the numerical solution gives the most dominant steepest-descent that describes the probability distribution for the initial condition of a universe. The probability is consistent with the Euclidean computations, and the overall shape of the wave function is compatible with analytical approximations, although there exist novel differences in the detailed probability computation. Our approach gives an alternative point of view for the no-boundary wave function from the wave function point of view. Possible interpretations and conceptual issues of this wave function are discussed.
Databáze: Directory of Open Access Journals
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