AnalysisNov 14

ArXiv Paper Presents CuEVM, a GPU-Native Ethereum Virtual Machine Engine

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A paper placed on the arXiv presents CuEVM, a GPU-native and semantically complete execution engine for the Ethereum Virtual Machine, which treats smart-contract execution as a parallel data-processin...

ExplainerNov 14

Two-Quantum Exchange as a Resource for Thermal Amplification

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A theoretical proposal for a quantum thermal transistor has been deposited on the arXiv, and it is worth the attention of engineers who have learned to read such documents with care. The authors descr...

AnalysisNov 14

Superlattice potentials stabilize the topological quantum Hall ferromagnet in graphene

black and white manga panel, dramatic speed lines, Akira aesthetic, bold ink work, A colossal hexagonal crystal lattice filling the frame, its struts forged from black carbon webbed with cold sapphire magnetic shimmer; a second, finer superlattice of white-hot tungsten filaments cinches around every joint, biting deep into the carbon with visible tension, hairline fractures glowing dull orange beneath each binding; extreme close-up on a single bound vertex, stark rim lighting carving the edges against vast empty blackness, radial speed lines streaking outward from the node into the void, the entire structure trembling on the threshold between perfect order and catastrophic shatter [Z-Image Turbo]

A paper deposited on the arXiv reports that a tunable superlattice potential can stabilise the ferromagnetic quantum Hall topological insulator in graphene at charge neutrality, without the large in-p...

AnalysisNov 14

Sign of Second Harmonic Proposed as Design Principle for Noise-Protected Superconducting Qudits

black and white manga panel, dramatic speed lines, Akira aesthetic, bold ink work, A colossal parabolic bowl carved from a single block of mirror-polished niobium, its interior terraced into concentric rings of inhuman precision, suspended alone in an endless void of absolute blackness; at its exact center a single white-hot point of light pulses, sending razor-thin speed lines of pale blue radiation streaking outward across the curved surface, bending and arcing back inward along the concavity; near the rim the polished metal flips sharply from concave to convex in a hairline seam of crystalline frost, marking the sign transition of the curvature; cold directional key light from above-left draws a bright crescent along the rim while the interior falls into profound shadow; atmosphere of absolute zero temperature, frozen silence, and immense contained force [Z-Image Turbo]

A preprint on the arXiv proposes that the sign of the second harmonic in the current-phase relation of a Josephson junction may serve as a design principle for superconducting qudits protected against...

AnalysisNov 14

Configuration-Dependent Leakage in Locally Masked Kyber NTT: A Hardware Implementation’s Narrow Result

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A paper reports a hardware implementation of the Number Theoretic Transform with local masking, applied to CRYSTALS-Kyber, and the result is a caution rather than a condemnation. Local masking was pro...

ExplainerNov 13

Shared Lookups and Lazy Residues Reduce Toffoli Costs in RSA-2048 Factoring

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A preprint crosses my desk this morning concerning the cost of factoring RSA-2048 on a fault-tolerant quantum computer. The construction, following Gidney's 2025 work, spends most of its Toffoli gates...

ExplainerNov 12

Three Papers, One Boundary: Simulated Channels, Observed Friends, and Commuting Checks

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Three papers this week mark the boundary between the quantum apparatus and the classical ledger, and each locates the boundary at a different point. The first, a no-go theorem concerning qubit channel...

BriefNov 12

A Longstanding Conjecture on Quantum Learning Is Refuted

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A paper newly posted to the arXiv refutes a conjecture that has long been assumed to govern exact learning. In that model a learner may pose membership queries, and the paper compares the cost of lear...

FeatureNov 12

1.7M Bitcoin in Exposed P2PK Outputs, KuCoin Says

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Roughly 1.7 million bitcoin, including coins from the Satoshi era, sit in pay-to-public-key outputs whose public keys are visible on-chain, according to an educational notice from the exchange KuCoin....

AnalysisNov 11

Exposition Posted for Proof of the Aaronson-Ambainis Conjecture

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A recent proof of the Aaronson-Ambainis conjecture is expounded in a paper posted to arXiv. The conjecture concerns the influence of variables in Boolean functions, and the proof establishes that ever...

ExplainerNov 11

Quantum Proofs of Proximity Promise Sublinear Checking, With Results Still Open to Scrutiny

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An academic paper deposited on the arXiv proposes a class of quantum proof systems in which a verifier, exchanging messages with an untrusted prover, decides whether a large input has a given property...

FeatureNov 11

Post-Quantum Cryptography Adoption in TLS Remains Sparse Outside HTTPS and LDAPS, Survey Finds

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An empirical survey of post-quantum cryptography in transport-layer security, lately deposited on the arXiv preprint server, finds that adoption across the public internet remains a minority provision...

AnalysisNov 10

arXiv paper details construction and ground-test results of SPOQC's continuous-variable QKD transmitter

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A paper describing the continuous-variable payload transmitter for the United Kingdom's SPOQC satellite mission has been placed in the arXiv repository. The transmitter, intended to demonstrate quantu...

BriefNov 9

Lazarus Espionage Campaign Employs NIST-Standardised Post-Quantum Cryptography

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Kaspersky has found a NIST-supported post-quantum cryptographic algorithm in a cyberespionage campaign against South Korean software, construction and communications equipment companies, and attribute...