24–29 Apr 2025
国科大杭州高等研究院 Hangzhou Institute for Advanced Study (UCAS)
Asia/Shanghai timezone

Modified gravity realizations of quintom dark energy

25 Apr 2025, 16:00
20m
Building 3, 2A-223 (国科大杭州高等研究院 Hangzhou Institute for Advanced Study (UCAS))

Building 3, 2A-223

国科大杭州高等研究院 Hangzhou Institute for Advanced Study (UCAS)

Speaker

Yuhang Yang (University of Science and Technology of China)

Description

Since the release of the DESI DR2 data, dynamic dark energy, particularly the quintom dark energy it suggests, has garnered significant attention. Quintom dark energy represents a characteristic that lies between quintessence and phantom behavior, indicating that the equation-of-state of dark energy will cross $-1$ during its evolution. In this talk, I will investigate the realization of quintom scenario for dynamical dark energy within modified gravity theories that can efficiently fit the recent observational datasets.

Author

Yuhang Yang (University of Science and Technology of China)

Co-authors

Ms Qingqing Wang Prof. Emmanuel N. Saridakis Dr Xin Ren Prof. Yi-Fu Cai (University of Science and Technology of China)

Presentation materials