The Quintom theory of dark energy after DESI DR2
University of Science and Technology of China · Hefei University of Technology · +7 more institutions
Abstract
Abstract Observations from The Dark Energy Spectroscopic Instrument Data Release 2 (DESI DR2) are challenging the Λ Cold Dark Matter (ΛCDM) paradigm by suggesting that the equation-of-state parameter of dark energy evolves across w = −1, a phenomenon known as the Quintom scenario. Inspired by this development, we present a staged review of Quintom cosmology including its theoretical foundations, observational supports, and implications as well as possible extensions. We first trace the historical progression from Einstein’s static cosmological constant to modern dynamical dark energy, summarizing recent cosmological constraints that favor an evolving w(z) along time. A key focus is the theoretical no-go…
Citation impact
- FWCI
- 59.97
- Percentile
- 100%
- References
- 0
Authors
5- YCYi-Fu CaiCorresponding
University of Science and Technology of China, Hefei University of Technology, Astronomy and Space
- XRXin Ren
University of Science and Technology of China, Hefei University of Technology, Astronomy and Space
- TQTaotao Qiu
Huazhong University of Science and Technology
- MLMingzhe Li
Peng Huanwu Center for Fundamental Theory
- XZXinmin Zhang
Institute of Theoretical Physics, Institute of High Energy Physics, Institute of High Energy Physics, University of Chinese Academy of Sciences
Topics & keywords
- Dark energy
- Dark matter
- Dark fluid
- Cosmology
- Cosmological constant
- Cold dark matter
- Field (mathematics)
- Scalar field dark matter