Assembly and coherent control of a register of nuclear spin qubits

Abstract

We introduce an optical tweezer platform for assembling and individually manipulating a two-dimensional register of nuclear spin qubits. Each nuclear spin qubit is encoded in the ground ${}^1{S}_0$ manifold of ${}^{87}$Sr and is individually manipulated by site-selective addressing beams. We observe that spin relaxation is negligible after 5 seconds, indicating that $T_1\gg 5$ s. Furthermore, utilizing simultaneous manipulation of subsets of qubits, we demonstrate significant phase coherence over the entire register, estimating $T_2^{\star }=\left(21\pm 7\right)$ s and measuring $T_2^{\text{echo}}=\left(42\pm 6\right)$ s.

10 pages, 4 figures

References in corpus (7)

• Probing many-body dynamics on a 51-atom quantum simulator
• An atom-by-atom assembler of defect-free arbitrary 2d atomic arrays
• 2000-times repeated imaging of strontium atoms in clock-magic tweezer arrays
• Improved frequency measurement of a one-dimensional optical lattice clock with a spin-polarized fermionic ${}^{87}$Sr isotope
• Enhanced atom-by-atom assembly of arbitrary tweezers arrays
• Single Atoms with 6000-Second Trapping Lifetimes in Optical-Tweezer Arrays at Cryogenic Temperatures
• Fast and dense magneto-optical traps for Strontium

Cited by in corpus (74)

• Logical quantum processor based on reconfigurable atom arrays
• High-fidelity gates with mid-circuit erasure conversion in a metastable neutral atom qubit
• Erasure conversion for fault-tolerant quantum computing in alkaline earth Rydberg atom arrays
• Ytterbium nuclear-spin qubits in an optical tweezer array
• Erasure conversion in a high-fidelity Rydberg quantum simulator
• Noisy intermediate-scale quantum computers
• Universal gate operations on nuclear spin qubits in an optical tweezer array of ${}^{171}$Yb atoms
• Quantum networks with neutral atom processing nodes
• Neutral Atom Quantum Computing Hardware: Performance and End-User Perspective
• Review of Distributed Quantum Computing. From single QPU to High Performance Quantum Computing
• A tweezer array with 6100 highly coherent atomic qubits
• Mid-circuit qubit measurement and rearrangement in a ${}^{171}$Yb atomic array
• Repetitive readout and real-time control of nuclear spin qubits in ${}^{171}$Yb atoms
• Analyzing the Rydberg-based omg architecture for ${}^{171}$Yb nuclear spins
• A universal neutral-atom quantum computer with individual optical addressing and non-destructive readout
• Dicke superradiance in ordered arrays of multilevel atoms
• Long-lived entanglement of molecules in magic-wavelength optical tweezers
• Coherent Control of the Fine-Structure Qubit in a Single Alkaline-Earth Atom
• Long-Lived Circular Rydberg Qubits of Alkaline-Earth Atoms in Optical Tweezers
• High-resolution spectroscopy and single-photon Rydberg excitation of reconfigurable ytterbium atom tweezer arrays utilizing a metastable state
• Fine-Structure Qubit Encoded in Metastable Strontium Trapped in an Optical Lattice
• Computational Capabilities and Compiler Development for Neutral Atom Quantum Processors: Connecting Tool Developers and Hardware Experts
• Qudit entanglers using quantum optimal control
• Fault-tolerant quantum computation using large spin cat-codes
• Scalable Networking of Neutral-Atom Qubits: Nanofiber-Based Approach for Multiprocessor Fault-Tolerant Quantum Computer
• Motional ground-state cooling of single atoms in state-dependent optical tweezers
• Optimized measurement-free and fault-tolerant quantum error correction for neutral atoms
• Reservoir-based deterministic loading of single-atom tweezer arrays
• An architecture for two-qubit encoding in neutral ytterbium-171 atoms
• Parallelized telecom quantum networking with a ytterbium-171 atom array
• Few-body analogue quantum simulation with Rydberg-dressed atoms in optical lattices
• Experimental realization of a 218-ion multi-qubit quantum memory
• Avoiding leakage and errors caused by unwanted transitions in Lambda systems
• Atom-Number Enhancement by Shielding Atoms from Losses in Strontium Magneto-Optical Traps
• Entangling quantum logic gates in neutral atoms via the microwave-driven spin-flip blockade
• Extending the coherence time limit of a single-alkali-atom qubit by suppressing phonon-jumping-induced decoherence
• Fast entangling gates for Rydberg atoms via resonant dipole-dipole interaction
• Jet-Loaded Cold Atomic Beam Source for Strontium
• Artificial Neural Network Syndrome Decoding on IBM Quantum Processors
• Multivalent optical cycling centers in polyatomic molecules
• Testing quantum theory on curved space-time with quantum networks
• A fiber array architecture for atom quantum computing
• Resource Analysis of Low-Overhead Transversal Architectures for Reconfigurable Atom Arrays
• Coherent control over the high-dimensional space of the nuclear spin of alkaline-earth atoms
• Engineering Rydberg-pair interactions in divalent atoms with hyperfine-split ionization thresholds
• Coherence-preserving cooling of nuclear spin qubits in a weak magnetic field
• Plane-selective manipulations of nuclear spin qubits in a three-dimensional optical tweezer array
• Quantum Non-Demolition Measurement on the Spin Precession of Laser-Trapped ${}^{171}$Yb Atoms
• Fast nuclear-spin gates and electrons-nuclei entanglement of neutral atoms in weak magnetic fields
• Comparing planar quantum computing platforms at the quantum speed limit
• Measurement of the g factor of ground-state 87Sr at the parts-per-million level using co-trapped ultracold atoms
• Single electron routing in a silicon quantum-dot array
• Fast nuclear-spin entangling gates compatible with large-scale atomic arrays
• Logical qubits with erasure conversion using metastable neutral atoms
• Universal gates for a metastable qubit in strontium-88
• Optical Nuclear Electric Resonance in LiNa: Selective Addressing of Nuclear Spins Through Pulsed Lasers
• Optical nuclear electric resonance as single qubit gate for trapped neutral atoms
• A Compact Dual-Beam Zeeman Slower for High-Flux Cold Atoms
• Generalized Parity Measurements and Efficient Large Multi-component Cat State Preparation with Quantum Signal Processing
• Hamiltonian formulations of centroid-based clustering
• A global quantum network with ground-based single-atom memories in optical cavities and satellite links
• Single Qudit Control in ${}^{87}$Sr via Optical Nuclear Electric Resonance
• Tailoring interaction ranges in atom arrays
• Model-Based Real-Time Synthesis of Acousto-Optically Generated Laser-Beam Patterns and Tweezer Arrays
• Quantum Internet: Resource Estimation for Entanglement Routing
• Differential polarizability at 1064 nm of the strontium intercombination transition
• Low-Crosstalk, Silicon-Fabricated Optical Waveguides for Laser Delivery to Matter Qubits
• Autonomously Designed Pulses for Precise, Site-Selective Control of Atomic Qubits
• High-efficiency loading of 2,400 Ytterbium atoms in optical tweezer arrays
• qSIEVE: Efficient qLDPC Memory via Systolic Movement in Atom Arrays
• Ptychographic estimation of pure multiqubit states in a quantum device
• Robust and Parallel Control of Many Qubits
• Spin-photon Qubits for Scalable Quantum Network
• Suppressing crosstalk for Rydberg quantum gates