Recent progress on the manipulation of single atoms in optical tweezers for quantum computing

TL;DR

This paper reviews recent advancements in manipulating single rubidium atoms in optical tweezers for quantum computing, including qubit control, coherence preservation, and progress towards entanglement.

Contribution

It presents new experimental techniques for coherent control and transfer of single atoms in optical tweezers, advancing quantum information processing capabilities.

Findings

Successful single qubit rotations demonstrated

Coherence preserved during atom movement and transfer

Progress towards entanglement via photon emission

Abstract

This paper summarizes our recent progress towards using single rubidium atoms trapped in an optical tweezer to encode quantum information. We demonstrate single qubit rotations on this system and measure the coherence of the qubit. We move the quantum bit over distances of tens of microns and show that the coherence is reserved. We also transfer a qubit atom between two tweezers and show no loss of coherence. Finally, we describe our progress towards conditional entanglement of two atoms by photon emission and two-photon interferences.