Measurement-induced transition in long-range interacting quantum circuits

M Block, Y Bao, S Choi, E Altman, NY Yao - Physical Review Letters, 2022 - APS
The competition between scrambling unitary evolution and projective measurements leads
to a phase transition in the dynamics of quantum entanglement. Here, we demonstrate that …

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 …

High-Fidelity Interconversion between Greenberger-Horne-Zeilinger and States through Floquet-Lindblad Engineering in Rydberg Atom Arrays

XQ Shao, F Liu, XW Xue, WL Mu, W Li - Physical Review Applied, 2023 - APS
Greenberger-Horne-Zeilinger and W states feature genuine tripartite entanglement that
cannot be converted into each other by local operations and classical communication. Here …

Dissipative preparation of W states in trapped ion systems

DC Cole, JJ Wu, SD Erickson, PY Hou… - New Journal of …, 2021 - iopscience.iop.org
We present protocols for dissipative entanglement of three trapped-ion qubits and discuss a
scheme that uses sympathetic cooling as the dissipation mechanism. This scheme relies on …

Fast and dephasing-tolerant preparation of steady Knill-Laflamme-Milburn states via dissipative Rydberg pum**

RH Zheng, Y **ao, SL Su, YH Chen, ZC Shi, J Song… - Physical Review A, 2021 - APS
We propose a fast and dephasing-tolerant scheme for the preparation of steady Knill-
Laflamme-Milburn (KLM) state between a pair of Rydberg atoms by dissipation. In this …

Robust and high-fidelity nondestructive Rydberg parity meter

RH Zheng, YH Kang, SL Su, J Song, Y **a - Physical Review A, 2020 - APS
In this paper, we propose a robust and high-fidelity scheme to construct a nondestructive
Rydberg parity meter by optimized inverse engineering, after which we can know the parity …

Single temporal-pulse-modulated parameterized controlled-phase gate for Rydberg atoms

XX Li, XQ Shao, W Li - Physical Review Applied, 2022 - APS
We propose an adiabatic protocol for implementing a controlled-phase gate CZ θ with
continuous θ of neutral atoms through a symmetrical two-photon excitation process via the …

Resource-efficient dissipative entanglement of two trapped-ion qubits

DC Cole, SD Erickson, G Zarantonello, KP Horn… - Physical Review Letters, 2022 - APS
We demonstrate a simplified method for dissipative generation of an entangled state of two
trapped-ion qubits. Our implementation produces its target state faster and with higher …

Quantum entanglement creation based on quantum scattering in one-dimensional waveguides

GZ Song, MJ Tao, J Qiu, HR Wei - Physical Review A, 2022 - APS
We propose two heralded schemes for generating multipartite Greenberger-Horne-Zeilinger
(GHZ) and W states. They are realized by photon scattering in one-dimensional waveguides …