5 papers · 1 filter
Measurement-Based Feedback of Open Quantum Systems: A Control-Theoretic Review and Tutorial
Weichao Liang, Jing Zhang, Gaoyue Guo +1
This review develops a control-theoretic perspective on measurement-based feedback for continuously monitored open quantum systems, with the main analysis focused on finite-dimensi…
Quantum Acoustics with Superconducting Qubits in the Multimode Transition-Coupling Regime
Li Li, Xinhui Ruan, Si-Lu Zhao +23
Hybrid mechanical-superconducting systems for quantum information processing have attracted significant attention due to their potential applications. In such systems, the weak cou…
Robust Quantum Control using Reinforcement Learning from Demonstration
Shengyong Li, Yidian Fan, Xiang Li +6
Quantum control requires high-precision and robust control pulses to ensure optimal system performance. However, control sequences generated with a system model may suffer from mod…
Tunable coupling of a quantum phononic resonator to a transmon qubit with flip-chip architecture
Xinhui Ruan, Li Li, Guihan Liang +16
A hybrid system with tunable coupling between phonons and qubits shows great potential for advancing quantum information processing. In this work, we demonstrate strong and tunable…
Dynamics and Resonance Fluorescence from a Superconducting Artificial Atom Doubly Driven by Quantized and Classical Fields
Xinhui Ruan, Jia-Heng Wang, Dong He +11
We report an experimental demonstration of resonance fluorescence in a two-level superconducting artificial atom under two driving fields coupled to a detuned cavity. One of the fi…