Entanglement of Two Atoms using Rydberg Blockade

TL;DR

This paper reviews the process of entangling two neutral Rb atoms using Rydberg blockade, covering experimental setup, state control, and verification of entanglement in a detailed manner.

Contribution

It provides a comprehensive review of the experimental techniques and physics behind entangling neutral atoms via Rydberg blockade, highlighting recent advancements.

Findings

Successful demonstration of entanglement between two Rb atoms

Implementation of blockade-mediated quantum gates

High-fidelity state initialization and readout

Abstract

Over the past few years we have built an apparatus to demonstrate the entanglement of neutral Rb atoms at optically resolvable distances using the strong interactions between Rydberg atoms. Here we review the basic physics involved in this process: loading of single atoms into individual traps, state initialization, state readout, single atom rotations, blockade-mediated manipulation of Rydberg atoms, and demonstration of entanglement.