4 papers · 1 filter
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…
A framework for robust quantum speedups in practical correlated electronic structure and dynamics
Jielun Chen, Garnet Kin-Lic Chan
Proposed quantum advantage in electronic structure has so far required significant fine-tuning to find problems where classical heuristics fail. We describe how to obtain robust qu…
Digital quantum simulation of squeezed states via enhanced bosonic encoding in a superconducting quantum processor
Hengyue Li, Yusheng Yang, Zhe-Hui Wang +6
We present a fully digital approach for simulating single-mode squeezed states on a superconducting quantum processor using an enhanced bosonic encoding strategy. By mapping up to…
Quantum linear algebra for disordered electrons
Jielun Chen, Garnet Kin-Lic Chan
We describe how to use quantum linear algebra to simulate a physically realistic model of disordered non-interacting electrons. The physics of disordered electrons outside of one d…