Space-Based Quantum Internet: Entanglement Distribution in Time-Varying LEO Constellations

• URL: http://arxiv.org/abs/2409.17032v1
• Date: Wed, 25 Sep 2024 15:33:08 GMT
• Title: Space-Based Quantum Internet: Entanglement Distribution in Time-Varying LEO Constellations
• Authors: Seid Koudia, Junaid ur Rehman, Symeon Chatzinotas,
• Abstract summary: We introduce a novel framework that leverages the dynamic nature of LEO satellite networks to enhance entanglement distribution efficiency. Our approach demonstrates superior performance in reducing entanglement drop rates and improving throughput compared to conventional methods.
• Score: 36.80897914664451
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: This paper addresses the complexities of entanglement distribution in LEO satellite networks, particularly those arising from their dynamic topology. Traditional static and dynamic entanglement distribution methods often result in high entanglement drop rates and reduced end-to-end throughput. We introduce a novel framework that leverages the dynamic nature of LEO satellite networks to enhance entanglement distribution efficiency. Employing a space-time graph model to represent the network's temporal evolution, we propose an entanglement distribution strategy based on path utility, incorporating pointing errors, non-ideal link transmittance for intersatellite links, and atmospheric effects for downlinks. Our approach demonstrates superior performance in reducing entanglement drop rates and improving throughput compared to conventional methods. This study advances the field of quantum communication in satellite networks, offering resilient and efficient entanglement distribution strategies that support practical applications such as distributed computing, quantum multipartite cryptography, and distributed quantum sensing. The findings underscore the potential of integrating dynamic satellite networks with quantum technologies to create a reliable and secure quantum internet.

Related papers

• Markov Chain Model of Entanglement Setup in Noisy Dynamic LEO Satellite Networks [4.736563450033072]
  This paper presents a comprehensive Markov chain model with a state space defined by link storage age and physical distance.<n>We derive analytical expressions for key performance metrics, including request satisfaction rate, average waiting time, link utilization efficiency, and average consumed link fidelity.<n>This work provides theoretical foundations for designing and optimizing quantum entanglement distribution strategies in satellite networks, with applications to global-scale quantum communications.
  arXiv  Detail & Related papers  (2025-12-23T04:46:40Z)
• Joint AoI and Handover Optimization in Space-Air-Ground Integrated Network [48.485907216785904]
  Low Earth orbit (LEO) satellite constellations offer promising solutions with global coverage and reduced latency.<n>Yet struggle with intermittent coverage and intermittent communication windows due to orbital dynamics.<n>Our three-layer design employs hybrid free-space optical (FSO) links for high-capacity satellite-to-ground communication and reliable radio frequency (RF) links for HAP-to-ground transmission.
  arXiv  Detail & Related papers  (2025-09-16T06:16:56Z)
• Distributed Link Sparsification for Scalable Scheduling Using Graph Neural Networks (Journal Version) [50.894272363373126]
  In wireless networks characterized by dense connectivity, the significant signaling overhead generated by distributed link scheduling algorithms can exacerbate issues like congestion, energy consumption, and radio footprint expansion.<n>We propose a distributed link sparsification scheme employing graph neural networks (GNNs) to reduce scheduling overhead for delay-tolerant traffic while maintaining network capacity.<n>A GNN module is trained to adjust contention thresholds for individual links based on traffic statistics and network topology, enabling links to withdraw from scheduling contention when they are unlikely to succeed.
  arXiv  Detail & Related papers  (2025-09-05T18:59:14Z)
• Satellite-Aided Entanglement Distribution for Optimized Quantum Networks [30.362736262973463]
  Quantum internet needs to ensure timely provision of entangled qubits to be used in tasks that involve distributed quantum computing or sensing. Pre-distribution of entanglements should aim to minimize the amount of qubits used, as this decreases the risk of decoherence and thus degradation of the entangled state. Satellite-aided Entanglement Distribution (SED) can significantly enhance the performance of small quantum networks.
  arXiv  Detail & Related papers  (2025-02-25T11:21:20Z)
• QuESat: Satellite-Assisted Quantum Internet for Global-Scale Entanglement Distribution [9.8446116106409]
  Entanglement distribution across remote distances is critical for many quantum applications. This paper investigates a new hybrid ground-satellite quantum network architecture (QuESat) for global-scale entanglement distribution.
  arXiv  Detail & Related papers  (2025-01-26T03:13:46Z)
• Optimizing Global Quantum Communication via Satellite Constellations [4.697836093704253]
  We introduce a novel approach using quantum relay satellites in Molniya orbits, enhancing communication efficiency and coverage. Our findings provide a strategic framework for deploying quantum satellites and relay systems to achieve a robust and efficient global quantum communication network.
  arXiv  Detail & Related papers  (2024-12-31T05:26:38Z)
• Efficient Entanglement Routing for Satellite-Aerial-Terrestrial Quantum Networks [28.392847313513503]
  Space-aerial-terrestrial quantum networks (SATQNs) are shaping the future of the global-scale quantum Internet. This paper investigates the collaboration among satellite, aerial, and terrestrial quantum networks to efficiently transmit high-fidelity quantum entanglements over long distances.
  arXiv  Detail & Related papers  (2024-09-20T13:57:32Z)
• Satellite Federated Edge Learning: Architecture Design and Convergence Analysis [47.057886812985984]
  This paper introduces a novel FEEL algorithm, named FEDMEGA, tailored to mega-constellation networks. By integrating inter-satellite links (ISL) for intra-orbit model aggregation, the proposed algorithm significantly reduces the usage of low data rate and intermittent GSL. Our proposed method includes a ring all-reduce based intra-orbit aggregation mechanism, coupled with a network flow-based transmission scheme for global model aggregation.
  arXiv  Detail & Related papers  (2024-04-02T11:59:58Z)
• Asynchronous Entanglement Routing for the Quantum Internet [0.42855555838080833]
  We propose a new set of asynchronous routing protocols for quantum networks. The protocols update the entanglement-link asynchronous topologyly, identify optimal entanglement-swapping paths, and preserve unused direct-link entanglements. Our results indicate that asynchronous protocols achieve a larger upper bound with an appropriate setting and significantly higher entanglement rate than existing synchronous approaches.
  arXiv  Detail & Related papers  (2023-12-21T21:14:21Z)
• Satellite-based entanglement distribution and quantum teleportation with continuous variables [0.0]
  We study the effects of atmospheric turbulence in continuous-variable entanglement distribution and quantum teleportation in the optical regime between a ground station and a satellite. We include an intermediate station for either state generation, or beam refocusing, in order to reduce the effects of atmospheric turbulence and diffraction. Results show the feasibility of free-space entanglement distribution and quantum teleportation in downlink paths up to the LEO region, but also in uplink paths with the help of the intermediate station.
  arXiv  Detail & Related papers  (2023-03-30T08:39:59Z)
• DQC$^2$O: Distributed Quantum Computing for Collaborative Optimization in Future Networks [54.03701670739067]
  We propose an adaptive distributed quantum computing approach to manage quantum computers and quantum channels for solving optimization tasks in future networks. Based on the proposed approach, we discuss the potential applications for collaborative optimization in future networks, such as smart grid management, IoT cooperation, and UAV trajectory planning.
  arXiv  Detail & Related papers  (2022-09-16T02:44:52Z)
• 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)
• Exploiting potentialities for space-based quantum communication network: downlink quantum key distribution modelling and scheduling analysis [8.25191890593706]
  We consider an evolved quantum network from a near-term form, in which a space-based relay, satellite executes a sequence of satellite-based quantum key distribution missions. We develop a comprehensive framework for the dynamic simulation of SatQKD and consider scheduling QKD downlink in future space-based quantum communication network.
  arXiv  Detail & Related papers  (2021-06-02T07:10:08Z)
• Entanglement Rate Optimization in Heterogeneous Quantum Communication Networks [79.8886946157912]
  Quantum communication networks are emerging as a promising technology that could constitute a key building block in future communication networks in the 6G era and beyond. Recent advances led to the deployment of small- and large-scale quantum communication networks with real quantum hardware. In quantum networks, entanglement is a key resource that allows for data transmission between different nodes.
  arXiv  Detail & Related papers  (2021-05-30T11:34:23Z)
• 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.