3 papers
cond-mat.str-el2026
Linear Canonical-Ensemble Quantum Monte Carlo: From Dilute Fermi Gas to Flat-Band Ferromagnetism
Tu Hong, Kun Chen, Xiao Yan Xu
We present a finite-temperature canonical-ensemble determinant quantum Monte Carlo algorithm that enforces an exact fermion number and enables stable simulations of correlated latt…
cond-mat.supr-con2026
Superconductivity in Electron Liquids: Precision Many-Body Treatment of Coulomb Interaction
Xiansheng Cai, Tao Wang, Shuai Zhang +5
More than a century after discovery, the theory of conventional superconductivity remains incomplete. While the importance of electron-phonon coupling is understood, a controlled f…
quant-ph2024
A Novel Pseudo-Spectral Time-Domain Theory of Magnetic Neutron Scattering Illustrated Using A Uniformly Magnetized Sphere
Kun Chen
A universal numerical method is developed for the investigation of magnetic neutron scattering. By applying the pseudospectral-time-domain (PSTD) algorithm to the spinor version of…