4 papers · 1 filter
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…
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…
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…
Learning conservation laws in unknown quantum dynamics
Yongtao Zhan, Andreas Elben, Hsin-Yuan Huang +1
We present a learning algorithm for discovering conservation laws given as sums of geometrically local observables in quantum dynamics. This includes conserved quantities that aris…