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Unconditional security proof of long-distance continuous-variable quantum key distribution with discrete modulation
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Unconditional security proof of long-distance continuous-variable quantum key distribution with discrete modulation
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We present a continuous-variable quantum key distribution protocol combining a discrete modulation and reverse reconciliation. This protocol is proven unconditionally secure and allows the distribution of secret keys over long distances, thanks to a reverse reconciliation scheme efficient at very low signal-to-noise ratio.
Forward citations
Cited by 7 Pith papers
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Finite-size general security for relativistic phase shift keying via variable-length quantum key distribution
Finite-size general security for DPSK QKD is achieved with positive key rates for 10^5 signals beyond 12 dB loss via variable-length entropy accumulation and conic optimization.
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Finite-size general security for relativistic phase shift keying via variable-length quantum key distribution
The paper proves finite-size general security for relativistic phase shift keying (RPSK) achieving secret key rates beyond 12 dB with 10^5 signals via entropy accumulation, Rényi leftover hashing, and conic optimization.
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Effective discrete-modulated continuous variable QKD under general attacks
Finite-size security proof for discrete-modulated CV-QKD under general attacks using dimension reduction and entropy accumulation yields positive rates at block sizes of order 10^8.
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High-Rate Free-Space Continuous-Variable QKD with Self-Referenced Passive State Preparation
A self-referenced LLO CVQKD system with passive state preparation achieves 10.34 Mbps asymptotic secret key rate over 23.5 dB loss free-space channel with low excess noise and turbulence robustness.
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High-Rate Free-Space Continuous-Variable QKD with Self-Referenced Passive State Preparation
Self-referenced PSP with LLO enables CVQKD to achieve 10.34 Mbps asymptotic secret key rate over up to 23.5 dB free-space loss with low excess noise and turbulence robustness.
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High-key-rate Fully-Passive Quantum Access Network with Thermal Source
A fully passive quantum access network with thermal sources and passive state preparation achieves 19.48 Mbps key rate per unit while extending CVQKD to point-to-multipoint setups.
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Optimization of CV-QKD Under Practical Constraints
Reinforcement learning optimizes CV-QKD under practical constraints of limited FIR filters, photon number, and DAC/ADC resolution, delivering significant performance gains.
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