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Scaling Quantum Networks: Boosting Entanglement for Distributed Computation

18.11.2025 by Ray Dalio

The link-limited volume—a critical constraint in network performance—is determined by the interplay between the number of physical Bell pairs ($N^{2}$) required for operation and the throughput ($R$) of those pairs, fundamentally defining the capacity for reliable quantum communication within each node during a single syndrome extraction cycle.

A new protocol significantly reduces the resources needed to create high-quality entangled qubit pairs, paving the way for larger, more reliable quantum networks.

Categories Science

Gentle Measurements: Boosting Quantum Error Correction with Adaptive Readout

17.11.2025 by Ray Dalio

An adaptive, non-demolition measurement protocol demonstrably improves readout fidelity by dynamically shifting measurement strategies—specifically, transitioning to dark state measurements upon event detection—and effectively reduces transition probabilities associated with nuclear flips ($Δm=1$ and $Δm=2$), achieving performance that approaches the theoretical limit imposed by ionization shock with a single measurement attempt, and ultimately surpassing the fidelity of conventional repeated non-demolition measurements even with increasing readout attempts or elapsed time.

A new protocol minimizes disturbance during quantum measurements, significantly improving the accuracy and speed of error correction in nuclear qubit systems.

Categories Science

Compiler Correctness: A Formal Proof for Cryptographic Security

17.11.2025 by Ray Dalio

Researchers have formally verified the Jasmin compiler, establishing guarantees that cryptographic implementations remain secure even after compilation.

Categories Science

Untangling Graphs: Algorithms for Efficient Error Correction

17.11.2025 by Ray Dalio

The median maximum edge participation varies significantly across different algorithmic variants when applied to the graphs under consideration.

New research explores how to minimize the workload on individual connections within a network, crucial for building robust quantum computers and reliable data transmission systems.

Categories Science

Quantum’s Global Network: Securing Communications of the Future

17.11.2025 by Ray Dalio

This review examines the evolving landscape of Quantum Key Distribution and the critical steps needed to build a truly global, secure quantum communication infrastructure.

Categories Science

Smarter Quantum Circuits: Tackling Measurement Errors for Better Results

17.11.2025 by Ray Dalio

A circuit leveraging qubit reuse efficiently implements the Bernstein-Vazirani algorithm, demonstrating a pathway to resource optimization in quantum computation.

A new compilation framework addresses the challenges of mid-circuit measurements, enhancing the fidelity of quantum algorithms on near-term hardware.

Categories Science

Beyond the Ticking Clock: Securing Time with Quantum Physics

17.11.2025 by Ray Dalio

A hybrid quantum key distribution (QKD) and post-quantum cryptography (PQC) system leverages the Quantum State Tomography Transmission (QSTT) protocol, utilizing single photon detection across Bell states—horizontal, vertical, diagonal, and anti-diagonal—to establish secure keys, followed by encryption, Message Authentication Code (MAC) verification, and GPS-free clock synchronization for timing data, anticipating deployment with an external entangled photon source, potentially satellite-based, and employing three distinct key sets for layered encryption and authentication protocols.

A new approach to time synchronization leverages the principles of quantum mechanics to deliver unparalleled security and precision.

Categories Science

Can AI Code Be Trusted? The Hidden Quality Gap

17.11.2025 by Ray Dalio

The study demonstrates that prompt strategies, when optimized for specific non-functional quality characteristics—maintainability, memory usage, security vulnerabilities, and test runtime—yield varying rates of patch submission, patch success rate (PSA), and ultimately, resolution, indicating that targeted optimization is crucial for effective system refinement as complexities accumulate.

As code generation tools powered by artificial intelligence become increasingly prevalent, a critical question emerges: does this code meet essential standards for reliability, security, and long-term viability?

Categories Science

Planning Under Uncertainty: A Quantile-Based Approach

17.11.2025 by Ray Dalio

New research introduces a risk-aware reinforcement learning algorithm that leverages quantile regression to navigate complex decision-making scenarios.

Categories Science

Securing the Source: Defending RAG Systems Against Knowledge Extraction

16.11.2025 by Ray Dalio

A defense framework, RAGFort, establishes a dual-path protection strategy—addressing both vertical and horizontal data vulnerabilities—and acknowledges that all systems, even those designed for resilience, are subject to inevitable decay.

A new framework, RAGFort, offers a robust defense against attacks that aim to steal proprietary data from Retrieval-Augmented Generation systems.

Categories Science
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