4 papers
Green's Function-Free Formalism of Projective Truncation Approximation
Kou-Han Ma, Yue-Hong Wu, Ning-Hua Tong
In previous works, the projected truncation approximation (PTA) was developed as a systematic and controlled method to truncate the equation of motion of Green's functions (GFs) fo…
Orbital Optical Raman Lattice
Zhi-Hao Huang, Kou-Han Ma, Bao-Zong Wang +2
Spin and orbital are two basic degrees of freedom that play significant roles in exploring exotic quantum phases in optical lattices with synthetic spin-orbit coupling (SOC) and hi…
Majorana Flat Bands in the Vortex Line of Superconducting Weyl Semimetals
Zhicheng Zhang, Kou-Han Ma
We report the emergence of Majorana flat bands (MFBs) in the vortex line of superconducting (SC) time-reversal-symmetry-breaking Weyl semimetals. By considering a Weyl semimetal as…
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…