Entanglement Storage Units

TL;DR

This paper presents a protocol using optimal control to create long-lasting entangled states in many-body quantum systems, enabling scalable entanglement storage without prior system knowledge, tested on specific models.

Contribution

It introduces a novel optimal control protocol for entanglement storage in many-body systems, applicable without prior system knowledge, and demonstrates its effectiveness on key models.

Findings

Successful creation of long-lived entangled states in tested models

Scalable entanglement-storage units are feasible with the protocol

Protection from decoherence achieved through energy gaps

Abstract

We introduce a protocol based on optimal control to drive many body quantum systems into long-lived entangled states, protected from decoherence by big energy gaps, without requiring any apriori knowledge of the system. With this approach it is possible to implement scalable entanglement-storage units. We test the protocol in the Lipkin-Meshkov-Glick model, a prototype many-body quantum system that describes different experimental setups, and in the ordered Ising chain, a model representing a possible implementation of a quantum bus.