Nondestructive Fluorescent State Detection of Single Neutral Atom Qubits

TL;DR

This paper presents a non-destructive fluorescent detection method for single neutral atom qubits with high accuracy and minimal atom loss, enabling repeated measurements and improved data collection in quantum computing experiments.

Contribution

It introduces a lossless fluorescent state detection technique for neutral atom qubits, allowing over 100 measurements per atom with high fidelity and minimal atom loss.

Findings

95% accuracy in state detection

1% atom loss rate

Over 100 repeated measurements per atom

Abstract

We demonstrate non-destructive (loss-less) fluorescent state detection of individual neutral atom qubits trapped in an optical lattice. The hyperfine state of the atom is measured with a 95% accuracy and an atom loss rate of 1%. Individual atoms are initialized and detected over 100 times before being lost from the trap, representing a 100-fold improvement in data collection rates over previous experiments. Microwave Rabi oscillations are observed with repeated measurements of one-and-the-same single atom.