1 citations · 1 across the 10 of their papers we have counts for
11 papers
Entanglement detection in dynamical quantum systems
Xingjian Zhang, Jiayi Wu, Jue Xu +1
Quantum science and engineering increasingly target the exploitation and control of large-scale dynamical systems. As system size grows, novel phenomena and quantum advantages emer…
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…
Provable Quantum Advantage for Dynamical Phase Transition
Jue Xu, Xiao Yuan, Qi Zhao
The universal scaling of critical behavior in phase transitions is a cornerstone of physics. Dynamical quantum phase transitions (DQPTs) are their nonequilibrium analogues: abrupt…
Taming Trotter Errors with Quantum Resources
Xiangran Zhang, Jue Xu, Qi Zhao +1
Quantum simulation is a cornerstone application of quantum computing, yet how fundamental quantum resources--entanglement and non-stabilizerness (``magic")--shape simulation fideli…
Classical Simulation Healed by Quantum Entanglement
Jue Xu, Chu Zhao, Xiangran Zhang +2
Entanglement is not only the origin of exotic quantum phenomena, but also widely regarded as the fundamental barrier to classical simulation of quantum dynamics. We overturn this i…
Exponentially Decaying Quantum Simulation Error with Noisy Devices
Jue Xu, Chu Zhao, Junyu Fan +1
Quantum simulation is a promising way toward practical quantum advantage, but noise in current quantum hardware poses a significant obstacle. We prove that not only the physical er…
Error Interference in Quantum Simulation
Boyang Chen, Jue Xu, Qi Zhao +1
Understanding algorithmic error accumulation in quantum simulation is crucial due to its fundamental significance and practical applications in simulating quantum many-body system…
Distributed Quantum Simulation
Tianfeng Feng, Jue Xu, Wenjun Yu +3
Quantum simulation is a promising pathway toward practical quantum advantage by simulating large-scale quantum systems. In this work, we propose communication-efficient distributed…
Observable-Driven Speed-ups in Quantum Simulations
Wenjun Yu, Jue Xu, Qi Zhao
As quantum technology advances, quantum simulation becomes increasingly promising, with significant implications for quantum many-body physics and quantum chemistry. Despite being…
Towards efficient and generic entanglement detection by machine learning
Jue Xu, Qi Zhao
Detection of entanglement is an indispensable step to practical quantum computation and communication. Compared with the conventional entanglement witness method based on fidelity,…
On Lagrangian Formalism of Quantum Computation
Jue Xu
We reformulate quantum computation in terms of Lagrangian (sum-over-path) formalism, in contrast to the widely used Hamiltonian (unitary gate) formulation. We exemplify this formal…