3 papers
gr-qc2026
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 .…
gr-qc2025
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…
gr-qc2025
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…