A swap test-based protocol complements quantum error correction for indistinguishable noise in quantum metrology and outperforms virtual state purification in simulations for single- and multi-parameter estimation.
Quantum Privacy Amplification and the Secur ity of Quantum Cryptography over Noisy Channels
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Q-GUARD achieves over 85% qualified success rate on 4-hop paths in 100-node simulations by allocating per-hop fidelity targets via Werner-state equal-split and selecting paths with a segment-local expected-goodput metric.
Double selection distillation statistics alone suffice to estimate Bell-diagonal parameters of undistilled and post-processed states, outperforming prior distillation-based estimators in resource use.
Random entanglement percolation is studied in heterogeneous quantum networks with edge singlet-conversion probabilities drawn from distributions, including a physical mapping from polarization-dependent loss magnitude to edge SCP in photonic networks.
Three architectural types for fault-tolerant distributed quantum computing exhibit distinct scaling of Bell-pair consumption and generation attempts with code distance in planar surface and toric codes.
Monte Carlo simulations map fidelity gains up to 0.07 and yield losses up to 0.55 for one round of DEJMPS purification across a grid of amplitude-damping and dephasing noise strengths in entangled photon systems.
citing papers explorer
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Complementing Quantum Error Correction in Quantum Metrology via Swap Test
A swap test-based protocol complements quantum error correction for indistinguishable noise in quantum metrology and outperforms virtual state purification in simulations for single- and multi-parameter estimation.
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Fidelity-Guaranteed Entanglement Routing with Distributed Purification Planning
Q-GUARD achieves over 85% qualified success rate on 4-hop paths in 100-node simulations by allocating per-hop fidelity targets via Werner-state equal-split and selecting paths with a segment-local expected-goodput metric.
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A double selection entanglement distillation-based state estimator
Double selection distillation statistics alone suffice to estimate Bell-diagonal parameters of undistilled and post-processed states, outperforming prior distillation-based estimators in resource use.
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Random entanglement percolation on realistic quantum networks
Random entanglement percolation is studied in heterogeneous quantum networks with edge singlet-conversion probabilities drawn from distributions, including a physical mapping from polarization-dependent loss magnitude to edge SCP in photonic networks.
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Architectural Approaches to Fault-Tolerant Distributed Quantum Computing and Their Entanglement Overheads
Three architectural types for fault-tolerant distributed quantum computing exhibit distinct scaling of Bell-pair consumption and generation attempts with code distance in planar surface and toric codes.
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Effectiveness of the DEJMPS purification protocol in noisy entangled photon systems, a Monte Carlo simulation
Monte Carlo simulations map fidelity gains up to 0.07 and yield losses up to 0.55 for one round of DEJMPS purification across a grid of amplitude-damping and dephasing noise strengths in entangled photon systems.