I am currently working as an associate professor in Beihang university, China. My research interest focuses on the efficient numerical simulations of quantum manybody systems, including both spin and fermion systems. Working on the tensor network state, an efficient wave-function ansatz, my collaborators and I have proposed several finite-temperature algorithms, in order to accurately simulate strongly correlated systems and calculate the thermodynamic properties down to low temperature.Utilizing the powerful tensor network methods, mainly the exponential tensor renormalization group (XTRG) and the renowned density matrix renormalization group (DMRG), we simulate frustrated spin systems as well as fermion systems with high precision, and discover novel many- body phenomena, including, two-temperature scale and the Kosterlitz-Thouless phase in frustrated spin systems, chiral spin liquid in triangular lattice Hubbard model, topological Mott insulator in the real-space effective model of twisted bilayer graphene.