Preparation of entangled and antiferromagnetic states by dissipative Rydberg pumping

TL;DR

This paper presents a method to generate high-fidelity entangled and antiferromagnetic states using dissipative Rydberg pumping, achieving near-perfect Bell singlet preparation and simulating complex spin interactions.

Contribution

It introduces a novel dissipative approach utilizing asymmetric Rydberg interactions to prepare entangled and antiferromagnetic states with high fidelity.

Findings

Bell singlet fidelity of 0.998 achieved

Antiferromagnetic states generated on a four-spin plaquette

Results agree with transverse field Ising model simulations

Abstract

We propose and analyze an approach for preparation of high fidelity entanglement and antiferromagnetic states using Rydberg mediated interactions with dissipation. Using asymmetric Rydberg interactions the two-atom Bell singlet is a dark state of the Rydberg pumping process. Master equation simulations demonstrate Bell singlet preparation fidelity $\mcF=0.998$. Antiferromagnetic states are generated on a four spin plaquette in agreement with results found from diagonalization of the transverse field Ising Hamiltonian.