Deterministically entangling distant nitrogen-vacancy centers by a nanomechanical cantilever

TL;DR

This paper proposes a practical method to deterministically entangle distant nitrogen-vacancy centers in diamonds using a nanomechanical cantilever with magnetic tips, demonstrating the generation of symmetric Dicke states and discussing experimental feasibility.

Contribution

It introduces a global addressing scheme for entangling distant N-V centers via a nanomechanical cantilever, advancing quantum information processing techniques.

Findings

Successful generation of symmetric Dicke states

Feasibility analysis of the proposed scheme

Discussion of experimental challenges

Abstract

We present a practical scheme by global addressing to deterministically entangle negatively charged nitrogen-vacancy (N-V) centers in distant diamonds using a nano-mechanical cantilever with the magnetic tips strongly coupled to the N-V electron spins. Symmetric Dicke states are generated as an example, and the experimental feasibility and challenge of our scheme are discussed.