Continuous-variable quantum key distribution protocols over noisy channels

Abstract

A continuous-variable quantum key distribution protocol based on squeezed states and heterodyne detection is introduced and shown to attain higher secret key rates over a noisy line than any other one-way Gaussian protocol. This increased resistance to channel noise can be understood as resulting from purposely adding noise to the signal that is converted into the secret key. This notion of noise-enhanced tolerance to noise also provides a better physical insight into the poorly understood discrepancies between the previously defined families of Gaussian protocols.

Minor modifications to match published manuscript

References in corpus (14)

• Simple Proof of Security of the BB84 Quantum Key Distribution Protocol
• Continuous variable quantum cryptography using coherent states
• Quantum key distribution using gaussian-modulated coherent states
• Unconditional optimality of Gaussian attacks against continuous-variable QKD
• Quantum key distribution over 25 km with an all-fiber continuous-variable system
• Quantum Cryptography without Switching
• An information-theoretic security proof for QKD protocols
• Optimality of Gaussian Attacks in Continuous Variable Quantum Cryptography
• Quantum Distribution of Gaussian Keys with Squeezed States
• Symmetry implies independence
• Quantum key distribution with bright entangled beams
• Security bounds for continuous variables quantum key distribution
• Controlling excess noise in fiber optics continuous variables quantum key distribution
• Noisy Preprocessing and the Distillation of Private States

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• General immunity and superadditivity of two-way Gaussian quantum cryptography
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• Composable security analysis of continuous-variable measurement-device-independent quantum key distribution with squeezed states for coherent attacks
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• Enhancement of the security of a practical continuous-variable quantum-key-distribution system by manipulating the intensity of the local oscillator
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• Practical Continuous-variable Quantum Key Distribution with Feasible Optimization Parameters
• Entanglement-based continuous-variable quantum key distribution with multimode states and detectors
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• Security of discrete-modulated continuous-variable quantum key distribution
• Unconstrained Capacities of Quantum Key Distribution and Entanglement Distillation for Pure-Loss Bosonic Broadcast Channels
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• Countermeasure for negative impact of practical source in continuous-variable measurement-device-independent quantum key distribution
• A Survey on Continuous Variable Quantum Key Distribution for Secure Data Transmission: Toward the Future of Secured Quantum-Networks
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• An introductory review of the theory of continuous-variable quantum key distribution: Fundamentals, protocols, and security
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