Transition Slow-Down by Rydberg Interaction of Neutral Atoms and a Fast Controlled-NOT Quantum Gate

Abstract

Exploring controllable interactions lies at the heart of quantum science. Neutral Rydberg atoms provide a versatile route toward flexible interactions between single quanta. Previous efforts mainly focused on the excitation annihilation~(EA) effect of the Rydberg blockade due to its robustness against interaction fluctuation. We study another effect of the Rydberg blockade, namely, the transition slow-down~(TSD). In TSD, a ground-Rydberg cycling in one atom slows down a Rydberg-involved state transition of a nearby atom, which is in contrast to EA that annihilates a presumed state transition. TSD can lead to an accurate controlled-{\footnotesize NOT}~({\footnotesize CNOT}) gate with a sub-$\mu$s duration about $2\pi /\Omega +\epsilon$ by two pulses, where $\epsilon$ is a negligible transient time to implement a phase change in the pulse and $\Omega$ is the Rydberg Rabi frequency. The speedy and accurate TSD-based {\footnotesize CNOT} makes neutral atoms comparable~(superior) to superconducting~(ion-trap) systems.

arXiv comment15 pages, 4 figures. Full text can be downloaded by first clicking the title of this work at the site (https://faculty.xidian.edu.cn/SXF/en/lwcg/389995/list/index.htm) and then locating the pdf item

References in corpus (78)

• Polynomial-Time Algorithms for Prime Factorization and Discrete Logarithms on a Quantum Computer
• A variational eigenvalue solver on a quantum processor
• Quantum Computing
• Quantum information with Rydberg atoms
• Probing many-body dynamics on a 51-atom quantum simulator
• Logic gates at the surface code threshold: Superconducting qubits poised for fault-tolerant quantum computing
• Dipole Blockade and Quantum Information Processing in Mesoscopic Atomic Ensembles
• Fast quantum gates for neutral atoms
• Many-Body Physics with Individually-Controlled Rydberg Atoms
• Quantum computation with ions in thermal motion
• Superconducting Circuits and Quantum Information
• Demonstration of a neutral atom controlled-NOT quantum gate
• Demonstration of a small programmable quantum computer with atomic qubits
• Realizing quantum Ising models in tunable two-dimensional arrays of single Rydberg atoms
• High-fidelity quantum logic gates using trapped-ion hyperfine qubits
• High-fidelity two-qubit quantum logic gates using trapped calcium-43 ions
• Entanglement of two individual neutral atoms using Rydberg blockade
• Quantum computing with atomic qubits and Rydberg interactions: Progress and challenges
• Generation and manipulation of Schrödinger cat states in Rydberg atom arrays
• Parallel implementation of high-fidelity multi-qubit gates with neutral atoms
• Superconducting qubit in waveguide cavity with coherence time approaching 0.1ms
• Experimental realization of a symmetry protected topological phase of interacting bosons with Rydberg atoms
• High-Fidelity Universal Gate Set for ${}^9$Be${}^{+}$ Ion Qubits
• Quantum Kibble-Zurek mechanism and critical dynamics on a programmable Rydberg simulator
• ARC: An open-source library for calculating properties of alkali Rydberg atoms
• High-fidelity control and entanglement of Rydberg atom qubits
• Quasiclassical calculations of BBR-induced depopulation rates and effective lifetimes of Rydberg nS, nP and nD alkali-metal atoms with n < 80
• High-Fidelity Entanglement and Detection of Alkaline-Earth Rydberg Atoms
• Rydberg atom quantum technologies
• Many-body interferometry of a Rydberg-dressed spin lattice
• Entangling Atomic Spins with a Strong Rydberg-Dressed Interaction
• Fidelity of quantum operations
• Single Photon Transistor Mediated by Inter-State Rydberg Interaction
• Rydberg mediated entanglement in a two-dimensional neutral atom qubit array
• Dynamical crystallization in a low-dimensional Rydberg gas
• Minimal Universal Two-qubit Quantum Circuits
• A practical scheme for quantum computation with any two-qubit entangling gate
• Mesoscopic Rydberg Gate based on Electromagnetically Induced Transparency
• Consequences of Zeeman Degeneracy for van der Waals Blockade between Rydberg Atoms
• Single-Photon Transistor Using a Förster Resonance
• Single-Photon Switch based on Rydberg Blockade
• Analysis of a quantum logic device based on dipole-dipole interactions of optically trapped Rydberg atoms
• Fast quantum logic gates with trapped-ion qubits
• Randomized benchmarking of single qubit gates in a 2D array of neutral atom qubits
• A Rydberg blockade CNOT gate and entanglement in a 2D array of neutral atom qubits
• Antiblockade in Rydberg excitation of an ultracold lattice gas
• Coherent many-body spin dynamics in a long-range interacting Ising chain
• Nonlinear quantum optics mediated by Rydberg interactions
• Evidence of antiblockade in an ultracold Rydberg gas
• A room temperature single-photon source based on strongly interacting Rydberg atoms
• Deterministic entanglement of two neutral atoms via Rydberg blockade
• Fast Ground State Manipulation of Neutral Atoms in Microscopic Optical Traps
• Entangling two atoms of different isotopes via Rydberg blockade
• A Photon-Photon Quantum Gate Based on Rydberg Interactions
• Universal gates based on targeted phase shifts in a 3D neutral atom array
• Observation of three-photon bound states in a quantum nonlinear medium
• Transverse-Field Ising Dynamics in a Rydberg-Dressed Atomic Gas
• Detailed Balance of Thermalization dynamics in Rydberg atom quantum simulators
• Coherence and Rydberg blockade of atomic ensemble qubits
• Fast Quantum State Control of a Single Trapped Neutral Atom
• Hybrid quantum logic and a test of Bell's inequality using two different atomic isotopes
• Symmetric Rydberg controlled-Z gates with adiabatic pulses
• Sub-microsecond entangling gate between trapped ions via Rydberg interaction
• Fidelity of a Rydberg blockade quantum gate from simulated quantum process tomography
• Observation of a resonant four-body interaction in cold cesium Rydberg atoms
• Deutsch, Toffoli, and CNOT Gates via Rydberg Blockade of Neutral Atoms
• Accurate mapping of multilevel Rydberg atoms on interacting spin-$1/2$ particles for the quantum simulation of Ising models
• Comparison of Gaussian and super Gaussian laser beams for addressing atomic qubits
• Phase diagram and self-organising dynamics in a strongly-interacting thermal Rydberg ensemble
• Rydberg atom entanglements in the weak coupling regime
• Hong-Ou-Mandel Interference between Two Deterministic Collective Excitations in an Atomic Ensemble
• Fast, Accurate, and Realizable Two-Qubit Entangling Gates by Quantum Interference in Detuned Rabi Cycles of Rydberg Atoms
• Doppler-resilient ground-Rydberg transition and its application in high-fidelity entangling gates with neutral atoms
• Suppress motional dephasing of ground-Rydberg transition for high-fidelity quantum control with neutral atoms
• Semi-Deterministic Entanglement between a Single Photon and an Atomic Ensemble
• Observation of the Borromean three-body Förster resonances for three interacting Rb Rydberg atoms
• Accurate Quantum Logic Gates by Spin Echo in Rydberg Atoms
• Single-site Rydberg addressing in 3D atomic arrays for quantum computing with neutral atoms

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