3 papers
cond-mat.quant-gas2025
Exact Spectral Function of One-Dimensional Bose Gases
Song Cheng, Yang-Yang Chen, Xi-Wen Guan +3
Exactly solved models provide rigorous understanding of many-body phenomena in strongly correlated systems. In this article, we report a breakthrough in uncovering universal many-b…
cond-mat.quant-gas2025
One-body dynamical correlation function of Lieb-Liniger model at finite temperature
Song Cheng, Yang-Yang Chen, Xi-Wen Guan +2
The dynamical correlated properties of one-dimensional (1D) Bose gases provide profound understanding of novel physics emergent from collective excitations, for instance, the break…
cond-mat.str-el2024
Exact results of one-dimensional repulsive Hubbard model
Jia-Jia Luo, Han Pu, Xi-Wen Guan
We present analytical results of fundamental properties of one-dimensional (1D) Hubbard model with a repulsive interaction, ranging from fractional excitations to universal thermod…