National Key Research and Development Program of China(2021YFC2203100);National Natural Science Foundation of China(12261131497 and 12003029);CAS young interdisciplinary innovation team(JCTD2022-20);111 Project(B23042);USTC Fellowship for International Cooperation,and USTC Research Funds of the Double First-Class Initiative。
We reconstruct the cosmological background evolution under the scenario of dynamical dark energy through the Gaussian process approach,using the latest Dark Energy Spectroscopic Instrument(DESI)baryon acoustic oscilla...