Quantum information transfer with nitrogen-vacancy centers coupled to a whispering-gallery microresonator

TL;DR

This paper proposes a scheme for quantum information transfer and entanglement between nitrogen-vacancy centers coupled via a whispering-gallery microresonator, advancing solid-state quantum communication technologies.

Contribution

It introduces a novel method utilizing dipole-dipole interactions mediated by a whispering-gallery mode for efficient quantum information transfer.

Findings

Effective dipole-dipole interaction enables quantum transfer

Raman transitions facilitate information exchange

Potential for solid-state quantum communication

Abstract

We propose an efficient scheme for the realization of quantum information transfer and entanglement with nitrogen-vacancy (NV) centers coupled to a high-Q whispering-gallery mode (WGM) microresonator. We show that, based on the effective dipole-dipole interaction between the NV centers mediated by the WGM, quantum information can be transferred between the NV centers through Raman transitions combined with laser fields. This protocol may open up promising possibilities for quantum communications with the solid state cavity QED system.