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Quantum BPS cosmology

delete2025-02-26
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PRE
AI
N
Nahomi Kan
K
Kiyoshi Shiraishi
M
Maki Takeuchi
M
Mai Yashiki *
DOI:10.1088/1361-6382/adb6eddelete
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摘要

摘要

En 中文
There has been much discussion about the initial conditions of the early Universe in the context of quantum theory. In this paper, we construct the wave function and probability distribution by adopting the quantum version of the BPS equation instead of the usual Wheeler-DeWitt equation in a minisuperspace quantum cosmology with spatially uniform scalar fields. Although the model treated in this study is technically valid for a limited form of scalar potential, we show that it is possible to construct a conserved probability current in our model. We also examine classical and quantum aspects of models with the Dirac-Born-Infeld type scalar fields.
Keyword:
quantum cosmology
BPS equation
DBI theory

期刊

Classical and Quantum Gravity 封面图
Classical and Quantum Gravity
IF:
3.7
论文数:
1.3W
被引数:
3.0W

机构

Y
Yamaguchi University
学者数:
5.8K
论文数: 4.4K
被引数: 3.3K
N
Nippon Bunri University
学者数:
18
论文数: 16
被引数: 8
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