6 papers · 1 filter
Superoscillating Quantum Control Induced By Sequential Selections
Yongcheng Ding, Yiming Pan, Xi Chen
Superoscillation is a counterintuitive phenomenon for its mathematical feature of ``faster-than-Fourier", which has allowed novel optical imaging beyond the diffraction limit. In t…
Scrambling in the Charging of Quantum Batteries
Sebastián V. Romero, Yongcheng Ding, Xi Chen +1
Exponentially fast scrambling of an initial state characterizes quantum chaotic systems. Given the importance of quickly populating higher energy levels from low-energy states in q…
Pulse-based variational quantum optimization and metalearning in superconducting circuits
Yapeng Wang, Yongcheng Ding, Francisco Andrés Cárdenas-López +1
Solving optimization problems using variational algorithms stands out as a crucial application for noisy intermediate-scale devices. Instead of constructing gate-based quantum comp…
Quantum Active Learning
Yongcheng Ding, Yue Ban, Mikel Sanz +2
Quantum machine learning, as an extension of classical machine learning that harnesses quantum mechanics, facilitates effiient learning from data encoded in quantum states. Trainin…
Exploring Ground States of Fermi-Hubbard Model on Honeycomb Lattices with Counterdiabaticity
Jialiang Tang, Ruoqian Xu, Yongcheng Ding +6
Exploring the ground state properties of many-body quantum systems conventionally involves adiabatic processes, alongside exact diagonalization, in the context of quantum annealing…
Weak-valued correlation functions: Insights and precise readout strategies
Yuan Feng, Xi Chen, Yongcheng Ding
The correlation function in quantum systems plays a vital role in decoding their properties and gaining insights into physical phenomena. Its interpretation corresponds to the prop…