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Optimized EIT-Based Multi-Target CNOT^k Gates in Heteronuclear Rydberg Atom Arrays
Zeyu Zhou, Xian-Lei Sheng, Peng Xu +1
Efficient stabilizer readout requiring multi-qubit coupling is a core bottleneck for quantum error correction. One feasible method is direct implementation of the controlled-U gate…
Symmetric gate for ultracold neutral atoms based on counterdiabatic driving at Rydberg excitation
I. I. Beterov, K. V. Kozenko, P. Xu +1
We designed a scheme for a neutral atom Rydberg blockade gate based on the double sequence of adiabatic pulses applied symmetrically to both atoms and using counterdiabatic d…
Coherent Rydberg excitation of single atoms using a pulsed fiber amplifier
Ying-Wen Zhang, Yang Wang, Chen-Long Xu +2
In recent years, the growing scale of programmable neutral-atom arrays has led to an increasing demand for higher-power Rydberg excitation light. Although pulsed amplifiers deliver…
Long-range tunable coupler for modular fluxonium quantum processors
Peng Zhao, Peng Xu, Zheng-Yuan Xue
The path toward practical superconducting quantum processors requires the integration of a large number of high-performance qubits. Modular architectures could offer a way to addre…
Quantum Sensing with Topological-Paired Bound States
Tao Zhang, Peng Xu, Jiazhong Hu +1
We present an efficient and robust protocol for quantum-enhanced sensing using a single qubit in the topological waveguide system. Our method relies on the topological-paired bound…
Phase-sensitive Rydberg-atom interferometry with Floquet electromagnetically induced transparency
Yingying Han, Changfa He, Peng Xu +3
We design a phase-sensitive Rydberg-atom interferometry by implementing Floquet electromagnetically induced transparency (FEIT). The FEIT mixes the sidebands of a Rydberg state ind…