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Cryptographic Distinguishability Measures for Quantum Mechanical States

4 Pith papers cite this work. Polarity classification is still indexing.

4 Pith papers citing it
abstract

This paper, mostly expository in nature, surveys four measures of distinguishability for quantum-mechanical states. This is done from the point of view of the cryptographer with a particular eye on applications in quantum cryptography. Each of the measures considered is rooted in an analogous classical measure of distinguishability for probability distributions: namely, the probability of an identification error, the Kolmogorov distance, the Bhattacharyya coefficient, and the Shannon distinguishability (as defined through mutual information). These measures have a long history of use in statistical pattern recognition and classical cryptography. We obtain several inequalities that relate the quantum distinguishability measures to each other, one of which may be crucial for proving the security of quantum cryptographic key distribution. In another vein, these measures and their connecting inequalities are used to define a single notion of cryptographic exponential indistinguishability for two families of quantum states. This is a tool that may prove useful in the analysis of various quantum cryptographic protocols.

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representative citing papers

Random dilation superchannel

quant-ph · 2025-12-24 · unverdicted · novelty 7.0

Presents a poly-complexity quantum circuit implementing the random dilation superchannel for parallel channel queries, with approximate sequential extension, a no-go theorem for exact sequential dilation, and an application to exponentially improved channel storage-retrieval.

Steganographic Entanglement Sharing

quant-ph · 2024-09-14 · unverdicted · novelty 4.0

The paper proposes steganographic protocols for transmitting quantum entanglement disguised as thermal noise, enabling hidden nonclassical state teleportation even against an active eavesdropper.

citing papers explorer

Showing 4 of 4 citing papers.

  • Random dilation superchannel quant-ph · 2025-12-24 · unverdicted · none · ref 44 · internal anchor

    Presents a poly-complexity quantum circuit implementing the random dilation superchannel for parallel channel queries, with approximate sequential extension, a no-go theorem for exact sequential dilation, and an application to exponentially improved channel storage-retrieval.

  • Quantum Advantage in Storage and Retrieval of Isometry Channels quant-ph · 2025-07-14 · unverdicted · none · ref 95 · internal anchor

    Quantum strategy stores isometry channels with n = Θ(1/√ε) queries for error ε, quadratic improvement over classical n = Θ(ε^{-1}).

  • Quantum hardware noise learning via differentiable Kraus representation on tensor networks quant-ph · 2026-04-22 · unverdicted · none · ref 48

    A differentiable tensor-network framework learns CPTP noise channels from single-circuit measurement data on IBM hardware and generalizes the model to unrelated circuits.

  • Steganographic Entanglement Sharing quant-ph · 2024-09-14 · unverdicted · none · ref 10 · internal anchor

    The paper proposes steganographic protocols for transmitting quantum entanglement disguised as thermal noise, enabling hidden nonclassical state teleportation even against an active eavesdropper.