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Physicsworld

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Delta.g wins IOP’s qBIG prize for its gravity sensors

Delta.g, a UK-based company, has won the 2025 qBIG prize awarded by the Institute of Physics (IOP) for its gravity sensors.
The company specializes in making quantum sensors that measure the local gravity gradient using atom interferometry technology.
The qBIG prize, sponsored by Quantum Exponential, includes a £10,000 cash prize, mentoring, and business support for Delta.g.
The IOP commended two runners-up, Neuranics and Smith Optical, for their innovative quantum sensor and augmented reality display technologies, respectively.

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Github

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GitHub Issues search now supports nested queries and boolean operators: Here’s how we (re)built it

GitHub has enhanced its Issues search functionality by introducing support for nested queries and boolean operators, enabling users to construct complex searches using logical AND/OR operators and nested parentheses.
The development of this feature involved challenges such as maintaining backward compatibility, ensuring performance under high query volume, and creating a user-friendly experience for nested searches.
The new syntax allows users to build queries across all fields using logical operators, for example, finding all issues that are open, authored by a specific user, and of certain types.
Previously, Issues search only supported a flat list of query fields and terms joined by a logical AND. The community's demand for more flexibility in search led to the implementation of advanced search capabilities.
The technical architecture involved swapping out the existing search module with a new module capable of handling nested queries while supporting the existing query formats.
The development process included stages like parsing the user input, transforming it into an Elasticsearch query document, and executing the query against Elasticsearch.
To ensure backward compatibility, extensive testing was conducted, and a validation process was implemented, comparing results from the old and new search systems.
Preventing performance degradation was a key consideration, with strategies like running equivalent queries against both systems and carefully refactoring critical paths using scientist, a Ruby library.
User experience was preserved by limiting the number of nested query levels, providing helpful UI cues, and collaborating with product and design teams.
The rollout of the new feature was done cautiously to minimize risk to users, with a phased integration approach and internal testing before wider release.

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Fyfluiddynamics

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Inside Hail Formation

A new study challenges the conventional wisdom that hailstones form through repeated trips up and down through a storm.
Researchers found that most hailstones grew without any reversal in direction, with only a small number experiencing multiple cycles.
Hailstones larger than 25mm in diameter were observed to have at least one period of growth during lifting.
While smaller hailstones may not cycle in a storm, the largest hailstones typically climb at least once before descending.

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Knowridge

198

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Why eggs are less likely to crack when dropped on their side

A new study published in Communications Physics challenges the belief that an egg is stronger if it lands upright.
Eggs are less likely to crack when dropped horizontally compared to when dropped vertically.
Research found that eggs are more flexible around their equator, allowing them to absorb more energy and resist breaking when dropped on their side.
The study suggests that understanding how objects like eggs respond to pressure could inspire stronger, more resilient structures in engineering.

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Physicsworld

291

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Electrolysis workstation incorporates mass spectrometry to accelerate carbon-dioxide reduction research

The electrochemical reduction of carbon dioxide is an important industrial process with potential to capture and utilize carbon dioxide.
Developing efficient electrochemical processes for carbon-dioxide reduction is crucial for R&D, involving catalyst and electrolyte optimization.
Challenges in operating electrochemical systems include maintaining proper gas humidification and minimizing carbonate production.
The 670 Electrolysis Workstation by Scribner offers a flexible and customizable system for testing materials and developing carbon-dioxide reduction systems.
The workstation features gas diffusion electrodes, membranes for ion migration control, and a ±20 A and 5 V potentiostat for accurate operation.
It is controlled by Scribner’s FlowCell™ software, providing full control, monitoring, and safety features for various experimental protocols.
Gas handling units in the workstation supply humidified gas crucial for converting carbon dioxide to products like methane and syngas.
The integration of mass spectrometry, such as Hiden Analytical's HPR-20, enables continuous gas analysis and optimization of electrochemical processes.
Pulsed-mode operation in electrochemical cells helps minimize carbonate production, and real-time monitoring with mass spectrometry aids in optimizing gas production.
Scribner is working on improving system time resolution and boosting the current capacity of the 670 Electrolysis Workstation for better research capabilities.

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Physicsworld

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‘We must prioritize continuity and stability to maintain momentum’: Mauro Paternostro on how to ensure that quantum tech continues to thrive

The quantum technology landscape is rapidly evolving, with progress in error correction, hybrid classical-quantum architectures, and quantum sensor commercialization.
Physicist Mauro Paternostro discusses recent quantum technology developments, including advances in quantum error correction for large-scale registers and the potential impact of Microsoft's topological quantum processor.
Progress in quantum-sensing devices, atomic quantum clocks, and hybrid quantum-high-performance computing architectures is paving the way for practical applications outside the lab.
To ensure the quantum sector fulfills its promises, continuity of funding, stability, and education programs like a Quantum Erasmus initiative are crucial.
The overlap between quantum technology and artificial intelligence offers promising opportunities for innovation in data processing, analysis, and forecasting.
The International Year of Quantum Science and Technology (IYQ) aims to raise global awareness about the potential of quantum technologies and could mark a transformative era.
Mauro Paternostro reflects on the 10th anniversary of Quantum Science and Technology journal and its growth in submissions, focus areas, and editorial initiatives in line with IYQ.
Moving forward, QST aims to lead in disseminating advancements in quantum technologies, with a focus on machine learning-enhanced quantum information processing and interdisciplinary studies.
Paternostro highlights the journal's commitment to Purpose-Led Publishing, emphasizing integrity, ethics, and transparency in scientific endeavors.
The article is part of Physics World's contribution to the 2025 International Year of Quantum Science and Technology, aiming to elevate global awareness of quantum physics and applications.

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COSMOS

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Milestone in bid to build world’s first large-scale quantum computer in Australia

One of the world’s largest cryogenic cooling plants will be built in Brisbane, Australia for constructing the first large-scale quantum computer.
Linde Engineering has signed an agreement with US company PsiQuantum to cool the new quantum hardware to -269°C.
PsiQuantum aims to build a 'useful' quantum computer by 2027 with photonic chips called 'Omega', allowing for less frigid temperatures for operation.
The investment in the project from Australian federal and Queensland state governments amounts to about A$1 billion, with potential applications in climate modeling, drug discovery, clean energy, and artificial intelligence.

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Medium

334

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Next-Gen RAG with Couchbase and Gemma 3: Building a Scalable AI-Powered Knowledge System

Retrieval-Augmented Generation (RAG) combines retrieval-based search with generative models for AI applications.
Couchbase offers speed, scalability, and flexibility with features like Memory-First Architecture and Built-in Full-Text Search.
Gemma 3, an open-source generative AI model, is optimized for efficiency and local machine deployment in RAG applications.
The tech stack includes Couchbase for vector database, Gemma 3 for generative responses, and FAISS for vector similarity search.

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Medium

351

Universal Resonance Model (URM) – Draft Paper v6 – Mathematical Foundations & Coherence-Only…

Universal Resonance Model (URM) Draft Paper v6 focuses on Mathematical Foundations & Coherence-Only Expressions.
The model introduces a single scalar field C∈[0,1] as a fundamental quantity, with various derived quantities and observable mappings.
URM emphasizes on coherence, emergent geometry, and self-referential dynamics in describing different physical phenomena.
The paper discusses topics like quantum coherence, cosmological tests, collapse dynamics, and unified frameworks for cosmology, gravity, and quantum physics.

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Knowridge

144

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Quasars don’t last long—so how do they get so massive

Quasars are powered by supermassive black holes that devour surrounding matter at incredible rates, releasing tremendous energy across the electromagnetic spectrum.
Recent observations of billion-solar-mass black holes challenge conventional growth models in astrophysics, as they were observed at redshifts when the universe was less than a billion years old.
Studies suggest that these early quasars have surprisingly short active lifetimes of less than a million years, prompting researchers to explore alternative growth mechanisms like episodic super-Eddington accretion and black hole mergers.
Observations using the Very Large Telescope's MUSE reveal that distant quasars have only recently started intense accretion, challenging current understanding of supermassive black hole growth in the early universe.

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Knowridge

156

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How 3D nanostructures are shaping the next generation of superconductor

Superconductors conduct electricity with zero resistance and repel magnetic fields due to Cooper pairs of electrons.
Researchers have created three-dimensional superconducting nanostructures, shifting from traditional two-dimensional designs.
The innovation allows for local control of the superconducting state, enabling the creation of weak links for technologies like ultra-sensitive sensors.
The reconfigurable nature of these 3D nanostructures opens up possibilities for adaptive and multi-functional superconducting devices in computing, sensing, and quantum technologies.

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Brighter Side of News

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Researcher breakthrough creates extended quantum entanglement between molecules

Controlling quantum states and entangling particles is a key focus for quantum technology researchers.
A recent breakthrough shows extended entanglement between ultracold polar molecules, holding promise for quantum computing and precision sensing.
Ultracold polar molecules' complex structures make them ideal for quantum applications, although fragility poses challenges.
Researchers at Durham University have achieved long-lived entanglement, a critical step towards scalable molecular quantum technologies.
Entangled molecules can manipulate quantum states instantly over long distances, enabling quantum simulation and high-dimensional computing.
By using magic-wavelength optical tweezers, researchers eliminated single-particle decoherence, achieving highly accurate molecule entanglement.
This high level of control extends entanglement duration, crucial for advanced quantum technology applications.
The breakthrough has implications for precision sensing, quantum computing, and quantum memories, advancing quantum network technologies.
Stable molecular entanglement could revolutionize fields like navigation, materials science, and fundamental physics with unparalleled accuracy.
Advancements in controlling and entangling molecules open new paths for exploring diverse scientific disciplines beyond quantum computing.

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COSMOS

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Head of quantum software at CSIRO: Quantum computers aren’t just hardware

Dr. Muhammad Usman, head of quantum systems at Australia's CSIRO, emphasizes the significance of quantum software and algorithms alongside quantum hardware.
Data61, part of CSIRO, focuses on diverse areas like data science, AI, cyber security, and quantum computing.
Dr. Usman's work involves developing quantum algorithms and software with a global team at Data61.
Quantum computing progress includes developing quantum processors with about 100 noisy qubits, showing gradual improvement.
Quantum error correction schemes are essential for enhancing hardware, bridging the gap with software and algorithms.
Quantum computers operate using qubits that can represent 0, 1, or a blend of both due to superposition, expanding computational abilities.
Usman's team focuses on quantum projects like AI efficiency, traffic optimization, and climate science research.
Quantum artificial intelligence differs from classical AI by utilizing entanglement in neuron systems for enhanced decision-making.
While quantum computers are still in progress, the development of quantum software and algorithms is crucial for future readiness.
Usman underlines the necessity of parallel development of quantum hardware and software for effective quantum computing.

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Popsci

297

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The universe may die sooner than expected

Astrophysicists' current models suggest the universe could end in around 10¹¹⁰⁰ years, but new calculations indicate it could end much sooner due to the nature of black hole particles.
A study published in the Journal of Cosmology and Astroparticle Physics suggests that stellar remnants due to decay could take only 10⁷⁸ years before the universe's demise, attributed to Hawking radiation.
Hawking radiation, theorized by Stephen Hawking, introduces a scenario where particles can escape black holes, causing a slow decay of the universe over time.
The revised calculation considering Hawking radiation puts the demise of the universe at 10⁷⁸ years, affecting objects like white dwarfs, neutron stars, and black holes.

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Fyfluiddynamics

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Dams Fill Reservoirs With Sediment

Dams naturally fill with sediment over time as rivers carry water and sediment.
Sediment falls out of suspension in slower-flowing reservoirs, creating colorful strata.
Long-term dam plans must address the challenge of sediment build-up, which is a complex and costly issue.
Dealing with sediment accumulation requires careful planning and investment in infrastructure.

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