High-fidelity Rydberg quantum gate via a two-atom dark state

Abstract

We propose a two-qubit gate for neutral atoms in which one of the logical state components adiabatically follows a two-atom dark state formed by the laser coupling to a Rydberg state and a strong, resonant dipole-dipole exchange interaction between two Rydberg excited atoms. Our gate exhibits optimal scaling of the intrinsic error probability $E\propto (B\tau {)}^{-1}$ with the interatomic interaction strength $B$ and the Rydberg state lifetime $\tau$. Moreover, the gate is resilient to variations in the interaction strength, and even for finite probability of double Rydberg excitation, the gate does not excite atomic motion and experiences no decoherence due to internal-translational entanglement.

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References in corpus (37)

• Quantum information with Rydberg atoms
• Dipole Blockade and Quantum Information Processing in Mesoscopic Atomic Ensembles
• Fast quantum gates for neutral atoms
• Observation of Rydberg blockade between two atoms
• Demonstration of a neutral atom controlled-NOT quantum gate
• Observation of collective excitation of two individual atoms in the Rydberg blockade regime
• Simple pulses for elimination of leakage in weakly nonlinear qubits
• Entanglement of two individual neutral atoms using Rydberg blockade
• Quantum computing with atomic qubits and Rydberg interactions: Progress and challenges
• Shortcuts to adiabaticity
• Three-dimensional Roton-Excitations and Supersolid formation in Rydberg-excited Bose-Einstein Condensates
• Quasiclassical calculations of BBR-induced depopulation rates and effective lifetimes of Rydberg nS, nP and nD alkali-metal atoms with n < 80
• Many-body interferometry of a Rydberg-dressed spin lattice
• Fidelity of quantum operations
• Strongly correlated gases of Rydberg-dressed atoms: quantum and classical dynamics
• Dipole blockade in a cold Rydberg atomic sample
• Analysis of a quantum logic device based on dipole-dipole interactions of optically trapped Rydberg atoms
• Direct measurement of the van der Waals interaction between two Rydberg atoms
• 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
• Dynamical polarizability of atoms in arbitrary light fields: general theory and application to cesium
• Coherent dipole-dipole coupling between two single atoms at a Förster resonance
• Interactions Between Rydberg-Dressed Atoms
• Full counting statistics and phase diagram of a dissipative Rydberg gas
• Strongly correlated growth of Rydberg aggregates in a vapor cell
• Full counting statistics of laser excited Rydberg aggregates in a one-dimensional geometry
• Out-of-equilibrium structures in strongly interacting Rydberg gases with dissipation
• Observation of the Stark-tuned Forster resonance between two Rydberg atoms
• High-fidelity Rydberg-blockade entangling gate using shaped, analytic pulses
• Improving frequency selection of driven pulses using derivative-based transition suppression
• Scalable designs for quantum computing with rare-earth-ion-doped crystals
• Fidelity of a Rydberg blockade quantum gate from simulated quantum process tomography
• Non-adiabatic motional effects and dissipative blockade for Rydberg atoms excited from optical lattices or microtraps
• Binding potentials and interaction gates between microwave-dressed Rydberg atoms
• Rydberg Quantum Gates Free from Blockade Error
• Dynamic formation of Rydberg aggregates at off-resonant excitation
• Creation and transfer of non-classical states of motion using Rydberg dressing of atoms in a lattice

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• Quantum simulation and computing with Rydberg-interacting qubits
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• A concise review of Rydberg atom based quantum computation and quantum simulation
• Fast multi-qubit gates by adiabatic evolution in interacting excited state manifolds
• Symmetric Rydberg controlled-Z gates with adiabatic pulses
• Quantum logic and entanglement by neutral Rydberg atoms: methods and fidelity
• Counteracting systems of diabaticities using DRAG controls: The status after 10 years
• Optimized Geometric Quantum Computation with mesoscopic ensemble of Rydberg Atoms
• Resilient quantum gates on periodically driven Rydberg atoms
• Photon recoil and laser focusing limits to Rydberg gate fidelity
• Robust Rydberg gate via Landau-Zener control of Förster resonance
• Robust control and optimal Rydberg states for neutral atom two-qubit gates
• Fast, Accurate, and Realizable Two-Qubit Entangling Gates by Quantum Interference in Detuned Rabi Cycles of Rydberg Atoms
• Enhancement of coherent dipole coupling between two atoms via squeezing a cavity mode
• Two-qubit controlled-PHASE Rydberg blockade gate protocol for neutral atoms via off-resonant modulated driving within a single pulse
• 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
• Geometric quantum speed limits and short-time accessibility to unitary operations
• Application of adiabatic passage in Rydberg atomic ensembles for quantum information processing
• Composite Short-path Nonadiabatic Holonomic Quantum Gates
• Single temporal-pulse-modulated parameterized controlled-phase gate for Rydberg atoms
• Accurate Quantum Logic Gates by Spin Echo in Rydberg Atoms
• Quantum optics of spin waves through ac Stark modulation
• Influence of ground-Rydberg coherence in two-qubit gate based on Rydberg blockade
• High-rate quantum LDPC codes for long-range-connected neutral atom registers
• Dipole-dipole interaction driven antiblockade of two Rydberg atoms
• Rabi-error and Blockade-error-resilient All-Geometric Rydberg Quantum Gates
• Unselective ground-state blockade of Rydberg atoms for implementing quantum gates
• Architecture for fast implementation of qLDPC codes with optimized Rydberg gates
• One-step implementation of Toffoli gate for neutral atoms based on unconventional Rydberg pumping
• Analysis of quantum interface between Rydberg-blocked atomic ensemble and cavity optical field with two-photon transition
• Faithful state transfer between two-level systems via an actively cooled finite-temperature cavity
• Adiabatic and high-fidelity quantum gates with hybrid Rydberg-Rydberg interactions
• Rydberg quantum computation with nuclear spins in two-electron neutral atoms
• High-fidelity Rydberg controlled-Z gates with optimal pulses
• Entangling quantum logic gates in neutral atoms via the microwave-driven spin-flip blockade
• Single-site Rydberg addressing in 3D atomic arrays for quantum computing with neutral atoms
• Fast measurements and multiqubit gates in dual species atomic arrays
• Extended two-body Rydberg blockade interaction with off-resonant modulated driving
• Geometric quantum gates via dark paths in Rydberg atoms
• Controlling the dipole blockade and ionization rate of Rydberg atoms in strong electric fields
• Quantum gates with weak van der Waals interactions of neutral Rydberg atoms
• Cold atoms in micromachined waveguides: a new platform for atom-photon interaction
• Coherent spin-phonon scattering in facilitated Rydberg lattices
• Universal Barenco quantum gates via a tunable non-collinear interaction
• Numerical Engineering of Robust Adiabatic Operations
• Two-qubit atomic gates: Spatio-temporal control of Rydberg interaction
• Engineering Rydberg-pair interactions in divalent atoms with hyperfine-split ionization thresholds
• Optically Tailored Trapping Geometries for Ultracold Atoms on a Type-II Superconducting Chip
• Nanoscale addressing and manipulation of neutral atoms using electromagnetically induced transparency
• Error-budgeting for a controlled-phase gate with strontium-88 Rydberg atoms
• Floquet geometric entangling gates in ground-state manifolds of Rydberg atoms
• Prospects for strongly coupled atom-photon quantum nodes
• Gauge effects in bound-bound Rydberg-transition matrix elements
• Quantum low-density parity-check codes for erasure-biased atomic quantum processors
• Inertial geometric quantum logic gates
• Time-Optimal Two- and Three-Qubit Gates for Rydberg Atoms
• Scalability and high-efficiency of an $(n+1)$-qubit Toffoli gate sphere via blockaded Rydberg atoms
• Fast entangling quantum gates with almost-resonant modulated driving
• The Virtual Quantum Device (VQD): A tool for detailed emulation of quantum computers