Fast and scalable quantum information processing with two-electron atoms in optical tweezer arrays

Abstract

Atomic systems, ranging from trapped ions to ultracold and Rydberg atoms, offer unprecedented control over both internal and external degrees of freedom at the single-particle level. They are considered among the foremost candidates for realizing quantum simulation and computation platforms that can outperform classical computers at specific tasks. In this work, we describe a realistic experimental toolbox for quantum information processing with neutral alkaline-earth-like atoms in optical tweezer arrays. In particular, we propose a comprehensive and scalable architecture based on a programmable array of alkaline-earth-like atoms, exploiting their electronic clock states as a precise and robust auxiliary degree of freedom, and thus allowing for efficient all-optical one- and two-qubit operations between nuclear spin qubits. The proposed platform promises excellent performance thanks to high-fidelity register initialization, rapid spin-exchange gates and error detection in readout. As a benchmark and application example, we compute the expected fidelity of an increasing number of subsequent SWAP gates for optimal parameters, which can be used to distribute entanglement between remote atoms within the array.

arXiv comment14 pages, 9 figures, 79 references

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Cited by in corpus (21)

• Microscopic control and detection of ultracold strontium in optical-tweezer arrays
• Seconds-scale coherence in a tweezer-array optical clock
• 2000-times repeated imaging of strontium atoms in clock-magic tweezer arrays
• An atomic array optical clock with single-atom readout
• Dissipative Bose-Hubbard system with intrinsic two-body loss
• Analyzing the Rydberg-based omg architecture for ${}^{171}$Yb nuclear spins
• Absence of Mobility Edge in Short-range Uncorrelated Disordered Model: Coexistence of Localized and Extended States
• Sub-recoil clock-transition laser cooling enabling shallow optical lattice clocks
• Time-Optimal Control of Collisional $\sqrt{\text{SWAP}}$ Gates in Ultracold Atomic Systems
• Fast universal two-qubit gate for neutral fermionic atoms in optical tweezers
• Rydberg quantum computation with nuclear spins in two-electron neutral atoms
• State-dependent potentials for the ${}^1{\text{S}}_0$ and ${}^3{\text{P}}_0$ clock states of neutral ytterbium atoms
• Jet-Loaded Cold Atomic Beam Source for Strontium
• Multivalent optical cycling centers in polyatomic molecules
• Quantum computation toolbox for decoherence-free qubits using multi-band alkali atoms
• Engineering the Kondo impurity problem with alkaline-earth atom arrays
• Prospects for single photon sideband cooling of optically trapped neutral atoms
• Two-color Ytterbium MOT in a compact dual-chamber setup
• Single-atom imaging of ${}^{173}$Yb in optical tweezers loaded by a five-beam magneto-optical trap
• Determining the ${}^3$P${}_0$ excited-state tune-out wavelength of ${}^{174}$Yb in a triple-magic lattice
• Laser-cooling Cadmium Bosons and Fermions with Near Ultraviolet Triplet Excitations