题 目：Quantum Damping of Cosmological Shear: A New Prediction from Loop Quantum Cosmologies
报告人：甘文聪 讲师 江西师范大学
时 间：2026年6月15日（星期一）10:30-12:00
地 点：虎溪校区理科楼LE201
邀请人：王盼盼
报告摘要：We study the dynamics of the Bianchi I universe in modified loop quantum cosmology (mLQC-I) and uncover a robust mechanism for isotropization: the shear is dynamically suppressed after the bounce and decays rapidly in the quantum post-bounce regime, independently of the equation of state of standard matter sources. This naturally drives the Universe toward a homogeneous and isotropic expanding phase without fine-tuning. Our results show that mLQC-I provides a new quantum-gravitational mechanism for suppressing anisotropies, absent in other bounce models.
甘文聪，江西师范大学物理学院讲师，硕士生导师。2023年毕业于贝勒大学，获得博士学位。研究领域为黑洞物理、全息引力和圈量子引力等。目前主要研究圈量子黑洞和圈量子宇宙学的有效解。主持国家自然科学基金青年项目。在Physical Review D， Journal of High Energy Physics等国际主流物理学期刊上发表论文18篇，另有一篇被PRL接收，总被引300余次。