3 papers
quant-ph2026
Efficient Classical Simulation of Weakly Interacting Fermion Dynamics
Chu Zhao, Iman Marvian, Yu Tong
We consider the task of simulating the real-time dynamics of weakly interacting fermionic systems. In particular, we focus on computing the expectation value of a local observable…
quant-ph2025
Convergence of the Cumulant Expansion and Polynomial-Time Algorithm for Weakly Interacting Fermions
Hongrui Chen, Cambyse Rouzé, Jielun Chen +6
We propose a randomized algorithm to compute the log-partition function of weakly interacting fermions with polynomial runtime in both the system size and precision. Although weakl…
quant-ph2025
Fast mixing of weakly interacting fermionic systems at any temperature
Yu Tong, Yongtao Zhan
We study the mixing time of a recently proposed efficiently implementable Lindbladian designed to prepare the Gibbs states in the setting of weakly interacting fermionic systems. W…