# A fully packaged multi-channel cryogenic module for optical quantum memories

## TL;DR

This paper presents a fully packaged, cryogenically stable multi-channel quantum emitter module based on color centers in diamond, advancing scalable quantum memory integration for quantum networks.

## Contribution

It introduces a novel cryogenic packaging solution for multi-channel diamond-based quantum emitters, enabling scalable quantum memory modules for network applications.

## Key findings

- The module operates reliably at cryogenic temperatures.
- It demonstrates compatibility with quantum network architectures.
- The design supports multi-channel integration for quantum memories.

## Abstract

Realizing a quantum network will require long-lived quantum memories with optical interfaces incorporated into a scalable architecture. Color centers quantum emitters in diamond have emerged as a promising memory modality due to their optical properties and compatibility with scalable integration. However, developing a scalable color center emitter module requires significant advances in the areas of heterogeneous integration and cryogenically compatible packaging. Here we report on a cryogenically stable and network compatible quantum-emitter module for memory use. This quantum-emitter module is a significant development towards advanced quantum networking applications such as distributed sensing and processing.