A Large-Scale Reconfigurable Multiplexed Quantum Photonic Network
- URL: http://arxiv.org/abs/2501.07272v2
- Date: Mon, 27 Jan 2025 18:25:08 GMT
- Title: A Large-Scale Reconfigurable Multiplexed Quantum Photonic Network
- Authors: Natalia Herrera Valencia, Annameng Ma, Suraj Goel, Saroch Leedumrongwatthanakun, Francesco Graffitti, Alessandro Fedrizzi, Will McCutcheon, Mehul Malik,
- Abstract summary: Entanglement distribution in quantum networks will enable next-generation technologies for quantum-secured communications, distributed quantum computing and sensing.
Future quantum networks will require dense connectivity, allowing multiple users to share entanglement in a reconfigurable and multiplexed manner.
We demonstrate a prototype global reconfigurable network where entanglement is routed and teleported in a flexible and multiplexed manner between two local multi-user networks composed of four users each.
- Score: 34.82692226532414
- License:
- Abstract: Entanglement distribution in quantum networks will enable next-generation technologies for quantum-secured communications, distributed quantum computing and sensing. Future quantum networks will require dense connectivity, allowing multiple users to share entanglement in a reconfigurable and multiplexed manner, while long-distance connections are established through the teleportation of entanglement, or entanglement swapping. While several recent works have demonstrated fully connected, local multi-user networks based on multiplexing, extending this to a global network architecture of interconnected local networks remains an outstanding challenge. Here we demonstrate the next stage in the evolution of multiplexed quantum networks: a prototype global reconfigurable network where entanglement is routed and teleported in a flexible and multiplexed manner between two local multi-user networks composed of four users each. At the heart of our network is a programmable 8x8-dimensional multi-port circuit that harnesses the natural mode-mixing process inside a multi-mode fibre to implement on-demand high-dimensional operations on two independent photons carrying eight transverse-spatial modes. Our circuit design allows us to break away from the limited planar geometry and bypass the control and fabrication challenges of conventional integrated photonic platforms. Our demonstration showcases the potential of this architecture for enabling large-scale, global quantum networks that offer versatile connectivity while being fully compatible with an existing communications infrastructure.
Related papers
- Resilient Entanglement Distribution in a Multihop Quantum Network [0.605746798865181]
We introduce multihop quantum networks to improve network reach and resilience.
We present multihop two-qubit polarization-entanglement distribution within a quantum network at the Oak Ridge National Laboratory campus.
arXiv Detail & Related papers (2024-07-29T22:42:08Z) - Quantum Fusion of Independent Networks Based on Multi-user Entanglement
Swapping [10.329329036590705]
We demonstrate the quantum fusion of two independent networks for the first time based on multiuser entanglement swapping.
Our approach opens attractive opportunities for the establishment of quantum entanglement between remote nodes in different networks.
arXiv Detail & Related papers (2023-12-06T04:13:05Z) - All-Photonic Quantum Repeater for Multipartite Entanglement Generation [6.300599548850421]
Entanglement generation and distribution over long distances is critical and unavoidable to utilize quantum technology in a fully-connected network.
Here we report a two-dimensional quantum repeater protocol for the generation of multipartite entanglement over long distances with all-photonic framework.
Our protocol can work as a significant building block for quantum networks in the future.
arXiv Detail & Related papers (2022-12-10T06:29:27Z) - A scheme for multipartite entanglement distribution via separable
carriers [68.8204255655161]
We develop a strategy for entanglement distribution via separable carriers that can be applied to any number of network nodes.
We show that our protocol results in multipartite entanglement, while the carrier mediating the process is always in a separable state with respect to the network.
arXiv Detail & Related papers (2022-06-20T10:50:45Z) - Controllable entangled state distribution in a dual-rail reconfigurable
optical network [62.997667081978825]
Reconfigurable distribution of entangled states is essential for operation of quantum networks connecting multiple devices such as quantum memories and quantum computers.
We introduce new quantum distribution network architecture enabling control of the entangled state propagation direction using linear-optical devices and phase shifters.
arXiv Detail & Related papers (2021-08-04T10:26:37Z) - Optimized Quantum Networks [68.8204255655161]
Quantum networks offer the possibility to generate different kinds of entanglement prior to network requests.
We utilize this to design entanglement-based quantum networks tailored to their desired functionality.
arXiv Detail & Related papers (2021-07-21T18:00:07Z) - A Reconfigurable Quantum Local Area Network Over Deployed Fiber [1.1713998235451095]
We implement flex-grid entanglement distribution in a deployed network for the first time.
We quantify the quality of the distributed polarization entanglement via log-negativity.
We demonstrate one possible quantum protocol enabled by the distributed entanglement network.
arXiv Detail & Related papers (2021-02-26T17:08:03Z) - Flexible entanglement-distribution network with an AlGaAs chip for
secure communications [0.0]
We demonstrate reconfigurable entanglement distribution between up to 8 users in a resource-optimized quantum network topology.
As a benchmark application we use quantum key distribution, and show low error and high secret key generation rates.
Together with the potential of our semiconductor source for distributing secret keys over a 60 nm bandwidth with commercial multiplexing technology, these results offer a promising route to the deployment of scalable quantum network architectures.
arXiv Detail & Related papers (2021-02-09T14:13:07Z) - Telecom-heralded entanglement between remote multimode solid-state
quantum memories [55.41644538483948]
Future quantum networks will enable the distribution of entanglement between distant locations and allow applications in quantum communication, quantum sensing and distributed quantum computation.
Here we report the demonstration of heralded entanglement between two spatially separated quantum nodes, where the entanglement is stored in multimode solid-state quantum memories.
We also show that the generated entanglement is robust against loss in the heralding path, and demonstrate temporally multiplexed operation, with 62 temporal modes.
arXiv Detail & Related papers (2021-01-13T14:31:54Z) - Purification and Entanglement Routing on Quantum Networks [55.41644538483948]
A quantum network equipped with imperfect channel fidelities and limited memory storage time can distribute entanglement between users.
We introduce effectives enabling fast path-finding algorithms for maximizing entanglement shared between two nodes on a quantum network.
arXiv Detail & Related papers (2020-11-23T19:00:01Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.