Entanglement Switch for Dipole Arrays

TL;DR

This paper introduces an entanglement switch for electric dipole qubits, allowing tunable pairwise entanglement control in various arrangements, with potential for practical quantum information applications.

Contribution

It presents a novel entanglement switch mechanism based on electric dipoles and discusses its feasibility for different qubit arrangements.

Findings

Entanglement can be controlled by the ratio of Rabi frequency to dipole-dipole coupling.

The switch is applicable in 1D, 2D, and 3D qubit arrangements.

Feasibility of building the entanglement switch is analyzed.

Abstract

We propose a new entanglement switch of qubits consisting of electric dipoles, oriented along or against an external electric field and coupled by the electric dipole-dipole interaction. The pairwise entanglement can be tuned and controlled by the ratio of the Rabi frequency and the dipole-dipole coupling strength. Tuning the entanglement can be achieved for one, two and three-dimensional arrangements of the qubits. The feasibility of building such an entanglement switch is also discussed.