3 citations · 3 across the 2 of their papers we have counts for
8 papers
Probing the sound speed and clustering of dark energy
Yuhang Yang, Qingqing Wang, Xin Ren +2
Recent Dark Energy Spectroscopic Instrument (DESI) observations favor a dynamical dark energy component with a time-varying equation-of-state, potentially crossing the cosmological…
A short review on Quintom dark energy theory
Xin Ren, Si-Yu Li, Yang Liu +3
In this paper, we provide a short review on the Quintom dark energy theory. Firstly, we discuss the No-Go theorem associated with dynamical dark energy, then present some examples…
Decoupling perturbations from background in gravity: the square-root correction and the impact on the tension
Chunyu Li, Xin Ren, Yuhang Yang +2
We investigate a perturbation-level modification of symmetric teleparallel gravity of the form and assess its potential to ease the tension. The square…
The Quintom theory of dark energy after DESI DR2
Yifu Cai, Xin Ren, Taotao Qiu +2
Observations from DESI DR2 are challenging the CDM paradigm by suggesting that the equation-of-state parameter of dark energy evolves across , a phenomenon known as the…
Gaussian-process reconstructions and model building of quintom dark energy from latest cosmological observations
Yuhang Yang, Qingqing Wang, Chunyu Li +4
In this article we use the latest cosmological observations, including SNe, BAO, CC and RSD, to reconstruct the cosmological evolution via the Gaussian process. At the background l…
Background-dependent and classical correspondences between and gravity
Cheng Wu, Xin Ren, Yuhang Yang +2
and gravity are based on fundamentally different geometric frameworks, yet they exhibit many similar properties. This article provides a comprehensive summary and com…