Fermion Sign Problem on Cong Wanghttps://frankcongwang.github.io/tags/fermion-sign-problem/Recent content in Fermion Sign Problem on Cong WangHugo -- 0.147.2enSat, 25 Jul 2026 00:00:00 +0000Revisiting the fermion sign problem from the structure of Lee-Yang zeroshttps://frankcongwang.github.io/presentations/presentation1/Thu, 18 Sep 2025 00:00:00 +0000https://frankcongwang.github.io/presentations/presentation1/Oral report at the 19th National Conference on Chemical Dynamics, Chun'an, Hangzhou, September 18–21, 2025.Revisiting the fermion sign problem from the structure of Lee-Yang zeros. III. Re-weighted simulation and identification of zeroshttps://frankcongwang.github.io/papers/paper1/Mon, 01 Jan 0001 00:00:00 +0000https://frankcongwang.github.io/papers/paper1/We propose a numerical method to obtain the Lee-Yang zeros of general interacting systems and use the zero distribution to guide fermionic PIMD simulations.Fermion sign problem and distribution of Lee-Yang zeroshttps://frankcongwang.github.io/presentations/presentation2/Sat, 25 Jul 2026 00:00:00 +0000https://frankcongwang.github.io/presentations/presentation2/Awarded poster at the CECAM Flagship School on Frontiers in Ab Initio Quantum Molecular Dynamics, Beijing, July 25–29, 2026.Revisiting the fermion sign problem from the structure of Lee-Yang zeros. II. Finite temperature results and continuation on the complex planehttps://frankcongwang.github.io/papers/paper2/Mon, 15 Jun 2026 00:00:00 +0000https://frankcongwang.github.io/papers/paper2/We analyze the movement of Lee-Yang zeros at finite temperature and propose an analytic continuation method to obtain low-temperature properties of fermionic systems.Revisiting the fermion sign problem from the structure of Lee-Yang zeros. I. The form of the partition function for anyons and its zeros at 0 Khttps://frankcongwang.github.io/papers/paper3/Thu, 15 Jan 2026 00:00:00 +0000https://frankcongwang.github.io/papers/paper3/We connect the fermion sign problem to the Lee-Yang theory of phase transitions and show that the partition function of indistinguishable particles is a polynomial with fixed zeros at zero temperature.