Quditto: Emulating and Orchestrating Distributed QKD Network Deployments

• URL: http://arxiv.org/abs/2512.15408v1
• Date: Wed, 17 Dec 2025 12:58:58 GMT
• Title: Quditto: Emulating and Orchestrating Distributed QKD Network Deployments
• Authors: Blanca Lopez, Angela Diaz-Bricio, Javier Perez, Ivan Vidal, Francisco Valera,
• Abstract summary: Quditto is an automated open-access emulation platform that combines high-fidelity quantum-channel modeling with a standardized key-delivery API.<n>We validate Quditto by deploying networks of various sizes and demonstrate its flexibility through two proof-of-concept scenarios.
• Score: 0.9061750353565144
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Quantum Key Distribution (QKD) offers information-theoretic security by leveraging quantum mechanics, yet the cost and complexity of dedicated hardware and fiber infrastructure have so far limited large-scale deployment and experimentation. In this paper, we introduce Quditto, an automated open-access emulation platform that combines high-fidelity quantum-channel modeling with a standardized key-delivery API, enabling users to interact with the emulated network exactly as they would with real QKD hardware. Quditto modular design supports pluggable protocol implementations, complex key management schemes and detailed channel models, including variable attenuation and decoherence. We validate Quditto by deploying networks of various sizes and demonstrate its flexibility through two proof-of-concept scenarios featuring eavesdropper attacks and heterogeneous channel conditions.

Related papers

• ConQuER: Modular Architectures for Control and Bias Mitigation in IQP Quantum Generative Models [40.972673943861075]
  Quantum generative models based on instantaneous quantum (IQP) circuits show great promise in learning complex distributions.<n>Current implementations suffer from lack of controllability over generated outputs and severe generation bias towards certain expected patterns.<n>We present a Controllable Quantum Generative Framework, ConQuER, which addresses both challenges through a modular circuit architecture.
  arXiv  Detail & Related papers  (2025-09-26T16:32:41Z)
• Scalable twin-field quantum key distribution network enabled by adaptable architecture [14.846406513309322]
  Quantum key distribution (QKD) is a key application in quantum communication, enabling secure key exchange between parties using quantum states.<n>We propose a scalable TF-QKD network with adaptable architecture, where users prepare quantum signals and send them to network nodes.<n>A proof-of-principle demonstration with three users successfully achieved secure key sharing over simulated link losses of up to $30$ dB, with an average rate of $19.57$ bit/s.
  arXiv  Detail & Related papers  (2025-04-21T14:39:59Z)
• Hybrid Implementation for Untrusted-node-based Quantum Key Distribution Network [16.242325482656927]
  Quantum key distribution (QKD) serves as a cornerstone of secure quantum communication.<n>We present a hybrid system that seamlessly integrates TF-QKD and MDI-QKD into one untrusted-node-based architecture.<n> Experiments demonstrate secure finite-size key rates for sending-or-not-sending QKD and MDI-QKD over fiber distances of 150 to 431 km.
  arXiv  Detail & Related papers  (2025-03-07T02:27:41Z)
• High-Fidelity Coherent-One-Way QKD Simulation Framework for 6G Networks: Bridging Theory and Reality [105.73011353120471]
  Quantum key distribution (QKD) has been emerged as a promising solution for guaranteeing information-theoretic security.<n>Due to the considerable high-cost of QKD equipment, a lack of QKD communication system design tools is challenging.<n>This paper introduces a QKD communication system design tool.
  arXiv  Detail & Related papers  (2025-01-21T11:03:59Z)
• Practical hybrid PQC-QKD protocols with enhanced security and performance [44.8840598334124]
  We develop hybrid protocols by which QKD and PQC inter-operate within a joint quantum-classical network. In particular, we consider different hybrid designs that may offer enhanced speed and/or security over the individual performance of either approach.
  arXiv  Detail & Related papers  (2024-11-02T00:02:01Z)
• QuIP: A P4 Quantum Internet Protocol Prototyping Framework [42.856299994841734]
  QuIP is a framework for designing and implementing quantum network protocols in a platform-agnostic fashion. It comes with the necessary tooling to enable their execution in existing quantum network simulators. We demonstrate its use by showcasing V1Quantum, a completely new device architecture, implementing a link- and network-layer protocol.
  arXiv  Detail & Related papers  (2024-06-20T17:47:07Z)
• Distributed Quantum Computing in Silicon [40.16556091789959]
  We present preliminary demonstrations of some key distributed quantum computing protocols on silicon T centres in isotopically-enriched silicon. We demonstrate the distribution of entanglement between modules and consume it to apply a teleported gate sequence.
  arXiv  Detail & Related papers  (2024-06-03T18:02:49Z)
• MadQCI: a heterogeneous and scalable SDN QKD network deployed in production facilities [0.0]
  Current quantum key distribution (QKD) networks focus almost exclusively on transporting secret keys with the highest possible rate. This architecture is neither scalable nor cost-effective and future, real-world deployments will differ considerably. The structure of the MadQCI QKD network presented here is based on disaggregated components and modern paradigms.
  arXiv  Detail & Related papers  (2023-11-21T18:57:21Z)
• High-rate continuous-variable measurement device-independent quantum key distribution with finite-size security [0.0]
  Continuous-variable (CV) measurement-device-independent (MDI) QKD is a promising candidate for creating various quantum network topologies. Here, we report the first experimental validation of a CV MDI-QKD system, achieving a secure key rate of 2.6 Mbit/s against collective attacks.
  arXiv  Detail & Related papers  (2023-03-02T22:20:29Z)
• Quantum Federated Learning with Entanglement Controlled Circuits and Superposition Coding [44.89303833148191]
  We develop a depth-controllable architecture of entangled slimmable quantum neural networks (eSQNNs) We propose an entangled slimmable QFL (eSQFL) that communicates the superposition-coded parameters of eS-QNNs. In an image classification task, extensive simulations corroborate the effectiveness of eSQFL.
  arXiv  Detail & Related papers  (2022-12-04T03:18:03Z)
• Experimental Demonstration of Discrete Modulation Formats for Continuous Variable Quantum Key Distribution [0.23090185577016442]
  Quantum key distribution (QKD) enables the establishment of secret keys between users connected via a channel vulnerable to eavesdropping. We experimentally implement a protocol that allows for arbitrary, Gaussian-like, discrete modulations, whose security is based on a theoretical proof. These modulation formats are compatible with the use of powerful tools of coherent optical telecommunication, allowing our system to reach a performance of tens of megabit per second secret key rates over 25 km.
  arXiv  Detail & Related papers  (2022-07-24T09:45:07Z)
• Open-destination measurement-device-independent quantum key distribution network [10.480419551094071]
  Quantum key distribution (QKD) networks hold promise for sharing secure randomness over multi-partities. Here, we propose an open-destination measurement-device-independent QKD network. The scheme enjoys security against untrusted relays and all detector side-channel attacks.
  arXiv  Detail & Related papers  (2020-09-28T16:05:32Z)

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.