Dissipative Preparation of Correlated Quantum States in Dipolar Rydberg Arrays

TL;DR

This paper introduces a dissipative protocol using auxiliary atoms to steer dipolar Rydberg arrays toward correlated quantum states, enabling flexible and scalable state preparation without prior Hamiltonian knowledge.

Contribution

The authors propose a novel dissipative method employing controllable auxiliary atoms for directed state preparation in dipolar quantum systems, applicable broadly beyond Rydberg arrays.

Findings

Enables stabilization of states across the many-body spectrum.

Does not require prior knowledge of the system Hamiltonian.

Applicable to various programmable quantum platforms.

Abstract

Preparing correlated quantum states is essential for emerging technologies, but remains challenging in many-body systems. Here we propose a dissipative protocol that engineers nonreciprocal, energy-selective transitions to steer dipolar quantum systems toward desired many-body states. This is realized by introducing two types of controllable dissipative auxiliary atoms that act as nonreciprocal excitation and de-excitation channels, respectively, enabling a directional walk in Hilbert space. This approach enables stabilization of states across the many-body spectrum, not limited to the ground state and requiring no \textit{a priori} knowledge of the Hamiltonian. Our approach is designed for neutral atoms in dipolar Rydberg arrays, but applies broadly to setups with similar capabilities, providing a flexible and scalable framework for state preparation in programmable platforms.