Production of genuine entangled states of four atomic qubits

TL;DR

This paper presents an optical scheme to deterministically generate sixteen genuine entangled states of four atomic qubits, introducing a new representation that enhances understanding of multipartite entanglement.

Contribution

It introduces a novel optical method to produce and represent all sixteen genuine entangled states of four atomic qubits, advancing quantum information processing.

Findings

Deterministic generation of sixteen orthonormal entangled states

Introduction of a new genuine entangled-state representation

Enhanced understanding of multipartite entanglement

Abstract

We propose an optical scheme to generate genuine entangled states of four atomic qubits in optical cavities using a single-photon source, beam splitters and single photon detectors. We show how to generate deterministically sixteen orthonormal and independent genuine entangled states of four atomic qubits. It is found that the sixteen genuine entangled states form a new type of representation of the four-atomic-qubit system, i.e., the genuine entangled-state representation. This representation brings new interesting insight onto better understanding multipartite entanglement.