Nanoscale addressing and manipulation of neutral atoms using electromagnetically induced transparency

TL;DR

This paper introduces nanoscale techniques for addressing and manipulating neutral atoms using electromagnetically induced transparency, enabling high-resolution quantum control with minimal cross talk and low spontaneous emission.

Contribution

It proposes and numerically investigates two dark-state based schemes for quantum operations on neutral atoms with nanometer precision.

Findings

Achieves spatial resolution of tens of nanometers with near-infrared light.

Demonstrates low cross talk in state-selective measurements.

Attains a spontaneous emission probability as low as 0.01 for phase gates.

Abstract

We propose to integrate dark-state based localization techniques into a neutral atom quantum computing architecture and numerically investigate two specific schemes. The first scheme implements state-selective projective measurement by scattering photons from a specific qubit with very little cross talk on the other atoms in the ensemble. The second scheme performs a single-qubit phase gate on the target atom with an incoherent spontaneous emission probability as low as 0.01. Our numerical simulations in rubidium (Rb) atoms show that for both of these schemes a spatial resolution at the level of tens of nanometers using near-infrared light can be achieved with experimentally realistic parameters.