Independent individual addressing of multiple neutral atom qubits with a MEMS beam steering system

TL;DR

This paper demonstrates a scalable method for individually addressing multiple neutral atom qubits using a MEMS beam steering system, achieving fast switching and minimal crosstalk for quantum computing applications.

Contribution

It introduces a MEMS-based beam steering approach for precise, scalable control of multiple neutral atom qubits in a linear array.

Findings

Single qubit oscillations at ~3.5 MHz with negligible crosstalk

Switching times of 6-7 microseconds to nearest neighbors

Switching times of 10-14 microseconds to atoms two sites away

Abstract

We demonstrate a scalable approach to addressing multiple atomic qubits for use in quantum information processing. Individually trapped 87Rb atoms in a linear array are selectively manipulated with a single laser guided by a MEMS beam steering system. Single qubit oscillations are shown on multiple sites at frequencies of ~3.5 MHz with negligible crosstalk to neighboring sites. Switching times between the central atom and its closest neighbor were measured to be 6-7 us while moving between the central atom and an atom two trap sites away took 10-14 us.