Quantum logic and entanglement by neutral Rydberg atoms: methods and fidelity

XF Shi - Quantum Science and Technology, 2022 - iopscience.iop.org
Quantum gates and entanglement based on dipole–dipole interactions of neutral Rydberg
atoms are relevant to both fundamental physics and quantum information science. The …

One-step construction of the multiple-qubit Rydberg controlled-phase gate

SL Su, HZ Shen, E Liang, S Zhang - Physical Review A, 2018 - APS
Although the three-body Rydberg antiblockade regime (RABR) can produce Rabi oscillation
between the Rydberg collective excited state and the collective ground state, it is still hard to …

Rydberg antiblockade regimes: dynamics and applications

SL Su, FQ Guo, JL Wu, Z Jin, XQ Shao… - Europhysics …, 2020 - iopscience.iop.org
Rydberg antiblockade (RAB) allows more than one Rydberg atom to be excited in the
presence of Rydberg-Rydberg interaction (RRI) and has many potential applications in …

High-tolerance antiblockade gates using optimal pulse drivings

WX Li, JL Wu, SL Su, J Qian - Physical Review A, 2024 - APS
Position error is treated as the leading obstacle that prevents Rydberg antiblockade gates
from being experimentally realizable, because of the inevitable fluctuations in the relative …

Periodically driven facilitated high-efficiency dissipative entanglement with Rydberg atoms

R Li, D Yu, SL Su, J Qian - Physical Review A, 2020 - APS
A time-dependent periodical field can be utilized to efficiently modify the Rabi coupling of
system, exhibiting nontrivial dynamics. We propose a scheme to show that this feature can …

Preparation of steady 3D dark state entanglement in dissipative Rydberg atoms via electromagnetic induced transparency

XY Zhu, Z Jin, E Liang, S Zhang, SL Su - Annalen der Physik, 2020 - Wiley Online Library
A scheme to prepare a 3D entangled state between a pair of Rydberg atoms via dissipative
dynamics and electromagnetic induced transparency associated with the single‐atom dark …

Robust generation of logical qubit singlet states with reverse engineering and optimal control with spin qubits

YH Kang, ZC Shi, Y Xia, J Song - Advanced Quantum …, 2020 - Wiley Online Library
A protocol is proposed to generate singlet states of three logical qubits constructed by pairs
of spins. Single and multiple operations of logical qubits are studied for the construction of …

Dissipative preparation of generalized bell states with the sørensen-mølmer setting

PZ Zhao, Z Jin, DM Tong - Physical Review Applied, 2022 - APS
Quantum entanglement is an important resource in quantum information processing tasks,
such as quantum cryptography, quantum teleportation, and quantum computation. The main …

Dissipative entanglement preparation via Rydberg antiblockade and Lyapunov control

ZX Ding, CS Hu, LT Shen, ZB Yang, H Wu… - Laser Physics …, 2019 - iopscience.iop.org
Preparation of entangled steady states via dissipation and pumping in Rydberg atoms has
been recently found to be useful for quantum information processing. The driven-dissipative …

One-Step Implementation of Collective Anti-Blockade in a Rydberg Ring

Y Fu, J Wu - Photonics, 2023 - mdpi.com
In contrast to Rydberg blockade, Rydberg anti-blockade allows multiple atoms to be
simultaneously excited in the presence of significant nonlocal interactions and can lead to …