Individual addressing of trapped ¹⁷¹Yb⁺ ion qubits using a MEMS-based beam steering system

2014/09/18 by Crain, S., Mount, E., Baek, S. +1
#Atomic Physics (physics.atom-ph) #FOS: Physical sciences #Quantum Physics (quant-ph)

paper · doi:10.48550/arxiv.1409.5362

Abstract

The ability to individually manipulate the increasing number of qubits is one of the many challenges towards scalable quantum information processing with trapped ions. Using micro-mirrors fabricated with micro-electromechanical systems (MEMS) technology, we focus laser beams on individual ions in a linear chain and steer the focal point in two dimensions. We demonstrate sequential single qubit gates on multiple ¹⁷¹Yb⁺ qubits and characterize the gate performance using quantum state tomography. Our system features negligible crosstalk to neighboring ions (< 3× 10^-4), and switching speed comparable to typical single qubit gate times (

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