4 papers
Realization of quintom dark energy after DESI DR2 in Nieh-Yan modified teleparallel gravity
Yuxuan Kang, Mingzhe Li, Changzhi Yi
Recent observations from the DESI Collaboration indicate a preference for quintom dark energy, i.e., its equation of state evolves across the cosmological constant boundary .…
Cosmological Perturbations of Extended NGR Model with Parity Violation
Yuxuan Kang, Mingzhe Li, Yeheng Tong
Recently the modified teleparallel gravity models attracted a lot of interests. In this paper we consider more extensions to the New General Relativity (NGR) model with parity viol…
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…
Spacetime perturbations and quasi-teleparallel gravity
Jian Gao, Yuxuan Kang, Mingzhe Li +1
Gravity is identical to curved spacetime. It is manifested by the curvature of a Riemannian spacetime in general relativity but by torsion or non-metricity in teleparallel gravity…