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- [1] Constraints on the Pre-Big Bang scenario from a cosmological interpretation of the NANOGrav dataJOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2025, (02):Conzinu, P.Fanizza, G.Gasperini, M.Pavone, E.Tedesco, L.Veneziano, G.
From pre- to post-big bang: an (almost) self-dual cosmological history
被引：4
|作者：
Gasperini, M.
[1
,2
]
机构：
[1] Univ Bari, Dipartimento Fis, Via G Amendola 173, I-70126 Bari, Italy
[2] Ist Nazl Fis Nucl, Bari, Italy
来源：
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
|
2022年
/
380卷
/
2230期
关键词：
string cosmology;
pre-big bang;
duality;
INFLATIONARY UNIVERSE;
PERTURBATIONS;
SYMMETRIES;
SCENARIO;
FLATNESS;
STRINGS;
HORIZON;
SCALE;
TIME;
O(D;
D O I：
10.1098/rsta.2021.0179
中图分类号：
O [数理科学和化学];
P [天文学、地球科学];
Q [生物科学];
N [自然科学总论];
学科分类号：
07 ;
0710 ;
09 ;
摘要：
We present a short introduction to a non-standard cosmological scenario motivated by the duality symmetries of string theory, in which the big bang singularity is replaced with a 'big bounce' at high but finite curvature. The bouncing epoch is prepared by a long (possibly infinitely extended) phase of cosmic evolution, starting from an initial state asymptotically approaching the string perturbative vacuum.This article is part of the theme issue 'The future of mathematical cosmology, Volume 2'.
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页数：21
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