2 papers
cond-mat.str-el2024
Thermal Broadening of Phonon Spectral Function in Classical Lattice Models: Projective Truncation Approximation
Hu-Wei Jia, Wen-Jun Liu, Yue-Hong Wu +3
Thermal broadening of the quasi-particle peak in the spectral function is an important physical feature in many statistical systems, but it is difficult to calculate. To tackle thi…
cond-mat.stat-mech2024
Thermodynamics of Classical One-dimensional Klein-Gordon Lattice Model
Hu-Wei Jia, Ning-Hua Tong
In this paper, we study the thermodynamical properties of the classical one-dimensional Klein-Gordan lattice model () by using the cluster variation method with linear res…