量子引力中的宇宙加速：涌现性 Inflation 与动力学暗能量
广义相对论与量子宇宙学
2025-12-15 v1
摘要
我们提出一种在群场论量子引力模型的平均场近似中实现宇宙加速的机制。 Depending on the interaction type, resulting cosmological dynamics can either feature a late-time attractor corresponding to a dynamical dark energy phase, often with characteristic phantom behavior, including in models inspired by simplicial gravity, or instead support an early slow-roll inflationary epoch driven by the same underlying quantum-gravitational effects. 这种涌现性 Inflation 有效地由单场描述捕获，可维持所需的扩张，自然地避免了优雅退出问题，并似乎过渡到持续的、与经典预期相符的非加速相位。
引用
@article{arxiv.2512.11712,
title = {Cosmic Acceleration from Quantum Gravity: Emergent Inflation and Dynamical Dark Energy},
author = {Luca Marchetti and Tom R. Ladstätter and Daniele Oriti},
journal= {arXiv preprint arXiv:2512.11712},
year = {2025}
}