21 citations · 21 across the 3 of their papers we have counts for
4 papers · 1 filter
Quantum-classical crossover in fault-tolerant quantum dynamics simulation
Jinzhao Sun, Bozhen Zhou, Jue Xu +28
While quantum computers promise to solve classically intractable problems, identifying the point at which fault-tolerant quantum computation outperforms the best classical algorith…
Trotter Scars: Trotter Error Suppression in Quantum Simulation
Bozhen Zhou, Qi Zhao, Pan Zhang
Recent studies have shown that Trotter errors are highly initial-state dependent and that standard upper bounds often substantially overestimate them. However, the mechanism underl…
Exact zeros of fidelity in finite-size systems as a signature for probing quantum phase transitions
Yumeng Zeng, Bozhen Zhou, Shu Chen
The fidelity is widely used to detect quantum phase transitions, which is characterized by either a sharp change of fidelity or the divergence of fidelity susceptibility in the the…
Exact zeros of the Loschmidt echo and quantum speed limit time for the dynamical quantum phase transition in finite-size systems
Bozhen Zhou, Yumeng Zeng, Shu Chen
We study exact zeros of Loschmidt echo and quantum speed limit time for dynamical quantum phase transition in finite size systems. Our results illustrate that exact zeros of Loschm…