Researchers Identify Limits on Quantum Battery Energy And Power Stability

thequantuminsider.com Sep 28, 2026

Researchers Identify Limits on Quantum Battery Energy And Power Stability

Curated by Shubham · TechCapsules · Sep 28, 2026

AI-summarised brief · reviewed before publication

Researchers have mapped the fundamental limits of quantum battery reliability, demonstrating that quantum uncertainty imposes a trade‑off between stable energy delivery and consistent power output. The study, published in PRX Quantum, shows that while collective charging boosts power, it also heightens power fluctuations, whereas hybrid charging offers a compromise. The findings apply to various interaction models, indicating that maximum power alone is insufficient for practical quantum energy storage.

💡 Why It Matters

· The work clarifies how quantum mechanics constrains battery performance, guiding the design of future quantum‑powered devices that require both speed and reliability.

Capsules Quantum Computing

Read full article on thequantuminsider.com

Quandela Seeks South Korean Partners for Photonic Quantum Computing

French photonic quantum‑computing firm Quandela announced a two‑year plan to forge strategic partnerships in South Korea covering quantum chip manufacturing, system integration and operational deployment. CEO Niccolò Somaschi outlined a roadmap toward fault‑tolerant photonic quantum computers at a Seoul press conference, emphasizing collaboration on advanced packaging, wafer‑level inspection, optical alignment and cryogenic control. Potential partners include Samsung, SK Hynix and LG Innotek, as well as research institutes in Seoul, Jeonnam‑Gwangju and the southeastern cluster. Quandela also seeks to create a Korean quantum‑manufacturing consortium that would share newly generated IP while preserving existing patents. The effort aims to test mass‑production viability of photonic modules and demonstrate QPU‑GPU integration for AI, HPC and cloud workloads.

💡 By pairing its photon‑based QPU expertise with Korea’s semiconductor manufacturing prowess, Quandela could accelerate the transition from laboratory‑scale prototypes to commercially viable quantum processors. This partnership positions South Korea as a pivotal hub for the next generation of quantum hardware.

quantumcomputingreport.com · Sep 28

The Two-Century Path That Made Quantum Computing Inevitable

Over the past two centuries, computing advances have relied on making existing architectures faster or more parallel, from Babbage’s engine to today’s dense silicon chips. Quantum computing breaks this pattern by replacing the underlying computational model for a specific class of problems, using the natural evolution of quantum states in high‑dimensional Hilbert space rather than sequential or limited parallel evaluation. This shift means solutions emerge from interference patterns instead of exhaustive search. While early quantum work focused on laboratory proofs‑of‑concept, by 2026 the field is evaluating utility: which circuits can run repeatedly with measurable value despite modest logical qubit counts and large error‑correction overhead. The critical challenge now is integrating hybrid classical‑quantum loops into existing high‑performance environments to solve industrially relevant tasks that classical methods struggle with.

💡 Quantum’s new computational primitive forces a rethink of hardware‑software co‑design, opening pathways to solve problems that were previously intractable for classical machines.

thequantuminsider.com · Sep 26

Sebastian Hassinger (The New Quantum Era): why neutral atoms lead the qubit…

Sebastian Hassinger, host of The New Quantum Era podcast and author of a new book of the same name, discusses his decade‑long quantum career, including stints at IBM Quantum and AWS, before founding his independent consultancy in early 2026. In a crossover interview with Yuval Boger, chief commercial officer of QuEra Computing, Hassinger explains his motivation for creating accessible quantum content, outlines the book’s focus on the history and modalities of qubits, and highlights his non‑PhD background in a field dominated by academics. The conversation underscores the growing demand for clear, non‑technical explanations of quantum technology.

💡 By demystifying quantum concepts for a broader audience, Hassinger’s work bridges the gap between researchers and industry stakeholders, accelerating informed investment and collaboration in the emerging quantum economy.

quantumcomputingreport.com · Sep 26

ETSI Identifies Technical Limitations and Implementation Vulnerabilities in Quantum Random Number Generators…

The European Telecommunications Standards Institute’s Cyber Security Technical Committee released ETSI TR 104 171, a set of implementation guidelines for Quantum Random Number Generators (QRNGs). The report highlights how practical hardware issues—detector dead time, thermal noise, and side‑channel leakage—can undermine the inherent unpredictability of quantum processes. It introduces the Entropy Zero Trust (EZT) framework, requiring continuous hardware verification, runtime attestation, and cryptographic signing at every stage of the entropy pipeline. The document also outlines future normative specifications, including standardized APIs, logging protocols, and alignment with Common Criteria/FIPS 140‑3 and post‑quantum cryptography standards such as ML‑KEM and ML‑DSA.

💡 By formalizing rigorous safeguards for QRNGs, the guidelines aim to prevent subtle hardware flaws from eroding quantum‑based security, ensuring that emerging quantum cryptographic systems remain truly random and trustworthy.

thequantuminsider.com · Sep 26

MANA Reveals Atomic-Scale Rails for Guiding Superconducting Vortices

Researchers at Japan’s National Institute for Materials Science discovered that atomic‑scale surface steps on an ultrathin superconductor act as rails guiding superconducting vortices. Scanning tunneling microscopy visualized vortices aligning along these one‑atom‑high steps, and four‑terminal resistance measurements showed vortices moved over 1,000 times faster along the steps than across them at intermediate magnetic fields. The guiding effect is tunable by temperature and magnetic field, offering a new method to control vortex motion and heat flow in low‑power superconducting devices.

💡 Precise vortex steering could reduce energy dissipation in next‑generation quantum circuits, directly impacting the efficiency of superconducting technologies.

quantumcomputingreport.com · Sep 26

Who’s News: Strategic Appointments at D-Wave Quantum, Oxford Quantum Circuits, and Bifrost…

D‑Wave Quantum Inc. added Bernard Gavgan, a former BNP Paribas group CIO and current senior advisor on technology and innovation, to its board of directors and cybersecurity committee, aiming to bolster the firm’s technology infrastructure as it scales its dual‑platform quantum computers for enterprise use. Oxford Quantum Circuits promoted Simon Phillips from chief technology officer to chief product officer; Phillips, who has overseen three generations of OQC’s quantum systems and their deployment in colocation data centers, will now steer product strategy to commercialize enterprise‑ready Quantum‑AI data‑center platforms after a £260 million Series C round and collaborations with JPMorgan Chase and AMD. Bifrost Electronics appointed deep‑tech entrepreneur Doug Campbell as chief executive officer. Campbell, who co‑founded Solid Power and led it to a 2021 IPO, will drive the rollout of the Heimdall Amplifier, a magnetically insensitive quantum read‑out device intended to remove Josephson junction bottlenecks in superconducting and spin‑based quantum hardware.

💡 Bringing a seasoned fintech and cybersecurity leader to D‑Wave’s board signals a push for tighter governance as quantum services move into critical enterprise environments, while OQC and Bifrost’s leadership changes accelerate the transition from laboratory prototypes to scalable, market‑ready quantum hardware.