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Quantum Zeitgeist Superposition

@superposition.bsky.social

Quantum Computing and Quantum Technology.

266 Followers  |  851 Following  |  5,768 Posts  |  Joined: 30.12.2023  |  1.8296

Latest posts by superposition.bsky.social on Bluesky

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Recent Quantum Runtime Evaluations Reveal Overhead Distorts Supremacy Claims On Current Hardware Recent assessments of quantum speedup, including those for optimisation and problem-solving tasks, often overestimate advantages by failing to account for the total time required for complete computation and comparison against optimised classical algorithms
10.10.2025 23:30 — 👍 1    🔁 1    💬 0    📌 0
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First-principles Calculations Reveal Spectral Properties Of Bulk Plasmons In 25 Elemental Metals Researchers have comprehensively mapped the behaviour of light-driven electron oscillations in twenty-five metals, revealing complex patterns and establishing a foundational dataset for advances in fields like light-based technologies and material analysis.
10.10.2025 21:30 — 👍 0    🔁 0    💬 0    📌 0
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Quantum Smoothing Theories Unify Retrodiction, Resolving Incompatibilities And Extending State Estimation Accuracy Researchers have developed a unified theoretical framework for smoothing complex systems, demonstrating that both past and future measurements fundamentally contribute to accurately estimating a system’s current state, and identifying the specific conditions under which the most accurate estimations can be achieved.
10.10.2025 21:15 — 👍 0    🔁 0    💬 0    📌 0
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Quantum Metastability Theory Reveals Area Laws And Markov Properties In Stable, Dissipative Systems Researchers demonstrate that the characteristic stability and predictable behaviour of systems at thermal equilibrium also arise dynamically in more complex, non-equilibrium states, revealing a universal structural principle governing their stability and resilience to noise.
10.10.2025 21:00 — 👍 0    🔁 0    💬 0    📌 0
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Quantum Shannon Information Theory Design Enables Efficient Communication Systems, Building On 1948 Foundations Researchers have developed a new theoretical framework and a perfectly secure cipher that overcomes a long-standing limitation of Shannon’s communication theory, potentially enabling communication systems with enhanced security and performance.
10.10.2025 20:45 — 👍 0    🔁 0    💬 0    📌 0
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Optimally Learning Functions In Interacting Quantum Sensor Networks Enables Estimation Of Linear Parameter Combinations Researchers have established fundamental limits and developed optimal strategies for accurately estimating parameters in complex, interconnected systems, advancing the potential of distributed sensing technologies like precise magnetometry and timekeeping.
10.10.2025 20:15 — 👍 0    🔁 0    💬 0    📌 0
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Quantum-classical Hybrid Solver Accelerates Extended Benders Decomposition For Large-Scale Mixed-Integer Quadratic Problems A new computational method combines established decomposition techniques with a specialised solver to efficiently find near-optimal solutions to complex, large-scale optimisation problems, achieving significant speed improvements over current commercial software for certain instances.
10.10.2025 19:30 — 👍 0    🔁 0    💬 0    📌 0
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Newton Polygons And Tropical Geometry Characterize Liouvillian Exceptional Points In Open Quantum Systems Researchers now utilise mathematical tools originally developed for polynomial equations to precisely identify and characterise instabilities in open quantum systems, offering a new pathway for controlling their behaviour and potentially designing systems with specific properties.
10.10.2025 19:15 — 👍 0    🔁 0    💬 0    📌 0
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Quantum State Transfer Protocol With Ising Hamiltonians Achieves 0.99 Fidelity For Spin Chains Scientists demonstrate a highly accurate method for transferring quantum information along chains of interacting spins, achieving nearly perfect transfer rates and opening new avenues for building more powerful quantum computers using readily available technology.
10.10.2025 19:00 — 👍 0    🔁 0    💬 0    📌 0
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Researchers Propose Realizing (mostly) Quantum-autonomous Gates On Three Platforms, Reducing Reliance On Time-dependent Control Researchers have demonstrated quantum gates operating on multiple platforms, including atoms, ions, and superconducting circuits, that require minimal external control, paving the way for more stable and scalable quantum computers.
10.10.2025 18:45 — 👍 0    🔁 0    💬 0    📌 0
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Quota Policies In STEM, Biology, And Humanities Reveal Performance Hierarchy In Calculus I Analysis of over a decade of university admissions data reveals that while quota policies have limited impact across disciplines, students admitted through racial quotas consistently perform lower in introductory STEM courses than those admitted through open competition or from public schools, and initial academic disparities persist despite repeated attempts at coursework
10.10.2025 18:30 — 👍 0    🔁 0    💬 0    📌 0
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Quantum Hamiltonian Learning Achieves Cramer-Rao Bound Through Parallelization For Many-Body Simulations Scientists have developed a new algorithm that accurately determines the properties of complex quantum systems, achieving optimal precision and resilience to errors while significantly reducing the experimental resources needed for full characterisation.
10.10.2025 18:15 — 👍 0    🔁 0    💬 0    📌 0
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Ultrahigh-q Chalcogenide Micro-Racetrack Resonators Achieve Quality Factors Of, Enabling Low-Loss Photonics Researchers have created a tiny, racetrack-shaped optical component from a glass-like material that exhibits exceptionally low energy loss and strong light-manipulating properties, paving the way for more efficient and compact photonic microchips.
10.10.2025 18:00 — 👍 0    🔁 0    💬 0    📌 0
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Initial State Control Generates Robust Entangled Steady States In Open Quantum Systems Via Dissipation Researchers have discovered a way to predict and reliably create stable, entangled states in complex systems by carefully controlling energy loss, offering a new approach to building robust quantum technologies.
10.10.2025 17:45 — 👍 0    🔁 0    💬 0    📌 0
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Hfo2 Capping Enhances Quantum Transport In Atomically Thin MoS2, Modifying Low-Temperature Electronic Behavior Applying a hafnium oxide coating to single-layer molybdenum disulfide enables electrons to travel in a wave-like manner at low temperatures, demonstrating a new way to control how charge moves in ultra-thin materials.
10.10.2025 17:30 — 👍 0    🔁 0    💬 0    📌 0
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Silicon (110) Confinement Demonstrates Mobility Peak At Cryogenic Temperatures Due To Remote Coulomb Scattering Simulations of silicon nano-devices reveal that electron mobility at extremely low temperatures peaks due to a shift from scattering by vibrations to competition between long-range electrostatic interactions and surface imperfections, offering crucial insights for designing future cryogenic computing technologies.
10.10.2025 17:15 — 👍 0    🔁 0    💬 0    📌 0
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Generalised Fractional Rabi Problem Demonstrates Nonlocal Dynamics And Memory Effects In Coherent Control Researchers demonstrate that incorporating the concept of ‘fractional dynamics’ into a standard model of quantum systems introduces controllable damping and memory effects, potentially offering new ways to manipulate and probe the behaviour of materials like graphene.
10.10.2025 17:00 — 👍 0    🔁 0    💬 0    📌 0
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Quantum LDPC Codes Achieve Single-Shot Universality Via Code-Switching For Fault-Tolerant Computation Researchers have developed a new computational protocol that achieves fault-tolerant quantum computing by instantly switching between different error-correcting codes, representing a significant advance over existing methods that require multiple correction steps or operate with limited data capacity.
10.10.2025 16:20 — 👍 0    🔁 0    💬 0    📌 0
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HPC-inspired Quantum Middle Layer Supports Diverse Technologies, Enabling Backend-Neutral Execution With Typed Data Researchers have created a flexible software layer that allows the same computational problem to run efficiently on fundamentally different quantum computing platforms, simply by adapting the execution details without altering the core problem description
10.10.2025 13:55 — 👍 1    🔁 0    💬 0    📌 0
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Quantum-enhanced Computer Vision Enables Solutions Beyond Classical Algorithms For Complex Visual Tasks Researchers are exploring a new approach to computer vision that utilises the principles of quantum mechanics to potentially overcome the limitations of traditional computing and enable faster, more efficient image processing
10.10.2025 13:30 — 👍 1    🔁 0    💬 0    📌 0
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Quantum Advantage From Sampling Shallow Circuits Achieves Distance Of From Classical Simulations Researchers have created a set of computational problems and corresponding quantum circuits that demonstrate a clear advantage over any comparable classical computer, even when using highly efficient algorithms and restricted to shallow circuit depths
10.10.2025 13:27 — 👍 1    🔁 0    💬 0    📌 0
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Quantum Computer Security: Protecting Systems From Attacks In The Age Of Cloud-Based Processors Researchers are now addressing the emerging security vulnerabilities of computing itself, developing methods to protect quantum processors from malicious attacks alongside existing work to safeguard classical computers from quantum threats
10.10.2025 13:11 — 👍 0    🔁 0    💬 0    📌 0
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Hybrid Quantum-AI Framework Predicts Protein Structure With Refined Energy Landscapes On 127-Qubit Devices By combining quantum computation with deep learning, researchers have developed a new method for predicting protein structures that surpasses the accuracy of leading existing programs, achieving statistically significant improvements in structural modelling
10.10.2025 13:04 — 👍 0    🔁 0    💬 0    📌 0
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Hardware-efficient Mølmer-Sørensen Gate Achieves 92.47% Fidelity On Superconducting Quantum Computers Researchers successfully implemented a complex quantum gate, previously untested on superconducting hardware, achieving performance comparable to the processor’s standard operations and demonstrating the potential to expand the versatility of quantum computers
10.10.2025 12:11 — 👍 0    🔁 0    💬 0    📌 0
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Path Integral Quantum Control Optimizes Parametrized Circuits Via Stochastic Schrödinger Equations For Electronic Structure Problems Researchers have developed a new computational method, building on path integral control, that optimises quantum circuits for calculating molecular energy levels with greater stability and accuracy than existing techniques, even when molecular structures change.
09.10.2025 16:15 — 👍 0    🔁 0    💬 0    📌 0
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Silicon Quantum Processor Demonstrates 88.5(2.3)% Fidelity Detection Of Four-Qubit Entanglement Scientists successfully demonstrate fault-tolerant quantum computation using silicon qubits, achieving high-fidelity entanglement of four qubits and detecting errors within the system, a crucial step towards building practical quantum computers.
09.10.2025 16:00 — 👍 0    🔁 0    💬 0    📌 0
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AI In Education: Principled Framework Connects Goals, Learning Models, And Technologies For Future Impact This research establishes a set of guiding principles for integrating artificial intelligence into higher education, ensuring it enhances meaningful learning and supports enduring educational values rather than simply replacing traditional teaching methods.
09.10.2025 15:45 — 👍 0    🔁 0    💬 0    📌 0
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Dyonic Quantum Black Holes Exhibit Holographic Entanglement Entropy And Complexity Growth Via Island Prescription Researchers demonstrate that the complexity of black holes, measured using a novel holographic approach, grows indefinitely, unlike that of simpler systems which eventually stabilise, offering new insights into the fundamental limits of information processing in the universe.
09.10.2025 15:30 — 👍 0    🔁 0    💬 0    📌 0
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Entanglement Dynamics In Two-qubit Superconducting Qubits Reveal Non-Markovian Effects On Gate Performance Researchers demonstrate that subtle connections between quantum bits and their surrounding environment significantly impact the reliability of quantum computations, revealing the importance of accounting for environmental ‘memory effects’ when designing future quantum devices.
09.10.2025 15:15 — 👍 0    🔁 0    💬 0    📌 0
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Ab Initio Study Defines Neutron And Fermi Polaron Equation Of State On The Lattice Researchers accurately calculate the behaviour of polarons, quasiparticles formed when an impurity interacts with a sea of fermions, using a powerful computational method applicable to both ultracold atomic gases and the complex environment within atomic nuclei.
09.10.2025 15:00 — 👍 0    🔁 0    💬 0    📌 0

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