3 papers
physics.chem-ph2026
Rigorous Quantum Thermodynamics from Entropic Path Integral Coarse-Graining
Jing Shen, Ziyan Ye, Ming-Zheng Du +5
Nuclear quantum effects (NQEs) remain a major challenge for molecular simulations, as rigorous treatment requires imaginary-time path-integral methods with heavy computational over…
cond-mat.stat-mech2025
Revisiting the Fermion Sign Problem from the Structure of Lee-Yang Zeros. I. The Form of Partition Function for Indistinguishable Particles and Its Zeros at 0~K
Ran-Chen He, Jia-Xi Zeng, Shu Yang +3
To simulate indistinguishable particles, recent studies of path-integral molecular dynamics formulated their partition function as a recurrence relation involving a variable $ξ…
cond-mat.other2025
Quantum disorder induced by nuclear tunneling in lattice
Yu-Cheng Zhu, Jia-Xi Zeng, Qi-Jun Ye +1
Lattice degrees of freedom (DoFs) may induce quantum disorder (QD) when nuclear tunneling outvies long-range order, but conventional phonon theory is incapable of describing such Q…