2018/03/04 by Ye‐Hong Chen, Ye-Hong Chen, Zhi‐Cheng Shi +5
Computer Science · Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Computer science #Context (archaeology) #Dissipation #Dissipative system #High fidelity #Noise (video) #Physics #Quantum #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum Zeno effect #Quantum decoherence #Quantum entanglement #Quantum mechanics #Rydberg atom #Rydberg formula #Statistical physics #quant-ph
paper · pdf · doi:10.1103/physreva.97.032328
published as Phys. Rev. A 97, 032328 (2018) · 10 figures, 10 pages, has been accepted by Physical Review A
arxiv created 2018/03/04 · openalex publication_date 2018/03/20 · arxiv updated 2018/03/28 · openalex created_date 2018/03/29 · openalex updated_date 2026/08/05
Based on Lyapunov control, a scheme is proposed to accelerate dissipation dynamics for the generation of high-fidelity entanglement between two Rydberg atoms in the context of cavity QED. We first use quantum Zeno dynamics and the Rydberg antiblockade to find a unique steady state (two-atom singlet state) for the system. Then, we apply additional coherent control (ACC) fields to improve the evolution speed of the dissipative system. The ACC fields are designed based on the target state and they vanish gradually along with increasing of the fidelity; thus, the system is guaranteed to be finally stable. Additionally, the current accelerated scheme is checked to be robust against systematic and amplitude-noise errors.