Quantum network is a research topic involving fundamental quantum information science, engineering designs, and experimental implementations. Existing research works primarily pertain to theoretical architecture designs and proof-of-concept experimental demonstrations. With the recent developments in engineering quantum systems, the realization of scalable local-area quantum networks has become viable. However, the design and implementation of a quantum network is a holistic task that is way beyond the scope of an abstract design problem. As such, a testbed on which multiple disciplines can verify the design and implementation across a full networking stack has become a necessary infrastructure for the future development of quantum networks. In this work, we demonstrate the concept of quantum internet service provider (QISP), in analogy to the conventional ISP that allows for the sharing of classical information between the network nodes. The QISP is significant for the next-generation quantum networks as it coordinates the production, management, control, and sharing of quantum information across the end-users of a quantum network. We construct a reconfigurable QISP comprising both the quantum hardware and classical control software. Building on the fiber-based quantum-network testbed of the Center for Quantum Networks (CQN) at the University of Arizona (UA), we develop an integrated QISP prototype based on a Platform-as-a-Service (PaaS) architecture, whose classical control software is abstracted and modularized as an open-source QISP framework. To verify and characterize the QISP's performance, we demonstrate multi-channel entanglement distribution and routing among multiple quantum-network nodes with a time-energy entangled-photon source. We further perform field tests of concurrent services for multiple users across the quantum-network testbed. Our experiment demonstrates the robust capabilities of the QISP, laying the foundation for the design and verification of architectures and protocols for future quantum networks.Quantum network is a research topic involving fundamental quantum information science, engineering designs, and experimental implementations. Existing research works primarily pertain to theoretical architecture designs and proof-of-concept experimental demonstrations. With the recent developments in engineering quantum systems, the realization of scalable local-area quantum networks has become viable. However, the design and implementation of a quantum network is a holistic task that is way beyond the scope of an abstract design problem. As such, a testbed on which multiple disciplines can verify the design and implementation across a full networking stack has become a necessary infrastructure for the future development of quantum networks. In this work, we demonstrate the concept of quantum internet service provider (QISP), in analogy to the conventional ISP that allows for the sharing of classical information between the network nodes. The QISP is significant for the next-generation quantum networks as it coordinates the production, management, control, and sharing of quantum information across the end-users of a quantum network. We construct a reconfigurable QISP comprising both the quantum hardware and classical control software. Building on the fiber-based quantum-network testbed of the Center for Quantum Networks (CQN) at the University of Arizona (UA), we develop an integrated QISP prototype based on a Platform-as-a-Service (PaaS) architecture, whose classical control software is abstracted and modularized as an open-source QISP framework. To verify and characterize the QISP's performance, we demonstrate multi-channel entanglement distribution and routing among multiple quantum-network nodes with a time-energy entangled-photon source. We further perform field tests of concurrent services for multiple users across the quantum-network testbed. Our experiment demonstrates the robust capabilities of the QISP, laying the foundation for the design and verification of architectures and protocols for future quantum networks.

arXiv:2305.09048International Conference on CommunicationsMay 28, 20232 citations

Review of recent challenges and solutions in quantum internet

Doaa Subhi, Rasha Thabit

AIP conference proceedingsJan 1, 20231 citation

Quantum Memory Development for the Quantum-Accelerated Internet Testbed

Ashlyn D. Burch, Yisheng Lei, Joseph C. Chapman +3 more

As quantum computation continues to advance, distributed quantum computing is emerging as a crucial configuration, offering a means to leverage the best technology across diverse platforms. This approach is essential for enhancing scalability and advancing quantum resources towards faulttolerant demonstration. A fundamental element of this design is the establishment of scalable quantum networks with robust quantum memory systems. We have recently demonstrated a high efficiency and high bandwidth solid-state quantum memory developed for the Quantum-Accelerated Internet Testbed (QuAInT) at Oak Ridge National Laboratory (ORNL), reaching $28.5 \pm 0.2 \%$ efficiency and a 630 MHz absorption window in the material. This work for QuAInT represents a collaborative endeavor across multiple institutions to establish the groundwork for a national quantum internet connection. We will highlight that work here, as well as our strategic vision to build a lower temperature and low-latency quantum memory platform.As quantum computation continues to advance, distributed quantum computing is emerging as a crucial configuration, offering a means to leverage the best technology across diverse platforms. This approach is essential for enhancing scalability and advancing quantum resources towards faulttolerant demonstration. A fundamental element of this design is the establishment of scalable quantum networks with robust quantum memory systems. We have recently demonstrated a high efficiency and high bandwidth solid-state quantum memory developed for the Quantum-Accelerated Internet Testbed (QuAInT) at Oak Ridge National Laboratory (ORNL), reaching$28.5 \pm 0.2 \%$efficiency and a 630 MHz absorption window in the material. This work for QuAInT represents a collaborative endeavor across multiple institutions to establish the groundwork for a national quantum internet connection. We will highlight that work here, as well as our strategic vision to build a lower temperature and low-latency quantum memory platform.

IEEE International Conference on Quantum Computing and Engineering (QCE)Aug 30, 20250 citations

Quantum Network Simulation and Emulation: A Roadmap for Quantum Internet Design

Brian Doolittle, Michael Cubeddu

Quantum networks are advancing the information technology infrastructure of society. Simulation and emulation software tools have emerged to support the design, development, and deployment of quantum networks, however, classical simulation and emulation methods have major bottlenecks in the error, latency, and cost that they can achieve at scale. In this work, we review quantum network simulation and emulation tools, including foundational principles, state-of-the-art tools, and bottlenecks. We then discuss how quantum technologies can address these challenges, and we construct a roadmap for the adoption of quantum simulation and emulation tools, emphasizing codesign with quantum network testbeds.Quantum networks are advancing the information technology infrastructure of society. Simulation and emulation software tools have emerged to support the design, development, and deployment of quantum networks, however, classical simulation and emulation methods have major bottlenecks in the error, latency, and cost that they can achieve at scale. In this work, we review quantum network simulation and emulation tools, including foundational principles, state-of-the-art tools, and bottlenecks. We then discuss how quantum technologies can address these challenges, and we construct a roadmap for the adoption of quantum simulation and emulation tools, emphasizing codesign with quantum network testbeds.

quant-pharXiv:2603.01980Mar 3, 20260 citations

28.5 \pm 0.2 \%

efficiency and a 630 MHz absorption window in the material. This work for QuAInT represents a collaborative endeavor across multiple institutions to establish the groundwork for a national quantum internet connection. We will highlight that work here, as well as our strategic vision to build a lower temperature and low-latency quantum memory platform.