Scalable Architecture for Quantum Information Processing with Atoms in Optical Micro-Structures

TL;DR

This paper reviews advances in quantum information processing using neutral atoms in 2D optical microtrap arrays, focusing on scalable architectures, single-site control, and experimental demonstrations of qubit operations.

Contribution

It introduces a scalable quantum architecture with micro-fabricated optical elements and demonstrates experimental control of up to 100 qubits.

Findings

Initialization and coherent rotation of 100 qubits achieved

Coherent transport of atomic states demonstrated

Feasibility of two-qubit gates discussed

Abstract

We review recent experimental progress towards quantum information processing and quantum simulation using neutral atoms in two-dimensional (2D) arrays of optical microtraps as 2D registers of qubits. We describe a scalable quantum information architecture based on micro-fabricated optical elements, simultaneously targeting the important issues of single-site addressability and scalability. This approach provides flexible and integrable configurations for quantum state storage, manipulation, and retrieval. We present recent experimental results on the initialization and coherent one-qubit rotation of up to 100 individually addressable qubits, the coherent transport of atomic quantum states in a scalable quantum shift register, and discuss the feasibility of two-qubit gates in 2D microtrap arrays.