# These Microscopic Magnetic Waves That Could Reinvent the Quantum Computer > Introduction: a discovery that comes from Vienna - Author: Maxime Marquette - Publisher: MadMax (https://mad-max.co) - Section: Reportage - Published: 2026-07-04 - Canonical URL: https://mad-max.co/en/article/ces-ondes-magnetiques-microscopiques-qui-pourraient-reinventer-lordinateur-quantique ## Introduction: a **discovery** that comes from Vienna ### A European **team** at the heart of the quantum race On **July 2, 2026**, a team of **researchers** led by **Andrii Chumak** of the **University of Vienna** published **results** in the **journal** **Science Advances** that could change the trajectory of **Western** quantum computing. The subject of their **study**: **magnons**, tiny quantum magnetic waves long considered too fleeting to be useful. This work, conducted in collaboration with **institutions** in **Germany**, the **United States** and **Ukraine**, including the **University of Colorado at Colorado Springs**, fits into a global **scientific** **competition** in which the **West** is seeking to preserve its **technological** edge against rivals investing massively in quantum research. ### A problem as old as **magnon research** itself For decades, physicists have known that **magnons** could theoretically carry quantum **information**, but their extraordinarily short **lifespan**, on the order of a few hundred nanoseconds, made them practically unusable for concrete quantum computing or memory applications. It is precisely this limit that the Vienna team claims to have pushed back spectacularly, opening a door many researchers believed closed by the very **laws** of **physics**. *There is something deeply reassuring about watching **Western** **science** keep pushing the limits of the possible, as technological rivalry with China intensifies every year.* ## What exactly is a magnon ### A wave born from the collective behavior of electrons A **magnon** is a quasiparticle that describes a collective disturbance in the orientation of electron spins inside a magnetic **material**, somewhat like a wave that propagates across the surface of a lake without the water itself traveling the entire distance the wave covers. This wave-like nature gives **magnons** unique properties: they can carry information without moving electric charge, which considerably limits the energy losses typically associated with conventional electronics. ### Why **scientists** see quantum potential in them Unlike the **superconducting qubits** used in most current quantum processors, **magnons** can reach extremely short wavelengths, on the order of just a few nanometers, which hints at the possibility of quantum components of unprecedented compactness. This potential compactness is at the heart of the excitement surrounding this research: quantum devices that would fit, according to the researchers themselves, into a space comparable to that of a penny. *Shrinking a quantum computer down to the size of a coin borders on science fiction, and yet that is exactly what this team now claims to be seriously pursuing.* ## The **breakthrough**: a lifespan multiplied by a hundred ### From a few hundred nanoseconds to eighteen microseconds The central **result** of the study is striking: the researchers managed to extend the lifespan of **magnons** from a few hundred nanoseconds to roughly **eighteen microseconds**, an improvement close to a factor of **one hundred** compared with previously documented performance. This **advance** now brings **magnon** performance closer to the time scales needed for practical quantum applications, placing it in a range comparable to the **superconducting qubits** that power the most advanced quantum processors currently in operation. ### The central role of Rostyslav Serha and his doctoral work These **results** rest largely on experimental work carried out by **Rostyslav Serha** as part of his doctoral research, a contribution that illustrates the often-underestimated role of young researchers in major scientific breakthroughs. The full team, including notably **Kaitlin McAllister**, **Fabian Majcen** and several other co-authors from the **Vienna Doctoral School in Physics**, had to overcome considerable experimental challenges to isolate and measure such fleeting **signals** with **precision**. *Multiplying by a hundred a lifespan that was already counted in fractions of a microsecond commands respect, even for those who don't grasp every technical detail of spin physics.* ## The secret: ultra-pure yttrium iron garnet spheres ### A material chosen for its crystalline purity The researchers used ultra-pure spheres of **yttrium iron garnet**, commonly known by its acronym **YIG**, a magnetic material already known for its exceptional low-energy-dissipation properties in the field of spin waves. Three **YIG** spheres with different purity levels were tested comparatively, allowing the team to establish a direct link between the crystalline quality of the material and the lifespan of the **magnons** propagating through it. ### A limit that is not physical, but industrial Perhaps the most promising conclusion of this study is the following: the lifespan of **magnons** is not fundamentally limited by an immutable **law** of physics, but rather by the manufacturing quality of the material used, meaning future improvements could come from more refined manufacturing processes rather than entirely new scientific discoveries. This distinction considerably changes the roadmap for **laboratories** and manufacturers: improving a crystal's purity is, in principle, a more accessible engineering challenge than working around a fundamental constraint of nature. *Learning that the obstacle is industrial rather than theoretical should considerably accelerate private investment, since engineers know how to solve manufacturing problems better than anyone.* ## Extreme **experimental** conditions ### Cooling down to thirty millikelvin To observe these **effects**, the team had to cool its experimental setup to just **thirty millikelvin** inside a dilution cryostat, a temperature representing only a tiny fraction of a degree above **absolute zero**. These extreme conditions, while essential to isolate the fragile quantum phenomena observed, also pose a major practical challenge: they require costly and complex cryogenic infrastructure, a factor that will need to be taken into account for any future industrial application. ### The **strategic** choice of short-wavelength magnons Rather than using conventional uniform **magnons**, the team deliberately chose to work with **short-wavelength magnons**, a technically more demanding approach but one that opens the way to much greater miniaturization of future components. This methodological choice reflects a long-term vision: favoring a harder path in the short term, but one whose future compactness potential is clearly superior for real quantum applications. *The price of this advance, measured in degrees near absolute zero, is a reminder that the most promising quantum physics remains, for now, confined to highly specialized laboratories.* ## Toward reliable quantum memory ### The dream of stable quantum information storage One of the most concrete **promises** of this research concerns **quantum memory**: a device capable of holding quantum information long enough to be useful in a computation or **communication**, without that information degrading almost instantly. With a lifespan now approaching twenty microseconds, **magnons** are getting closer to the practical threshold needed to envision real memory applications, even though a long road remains before commercial integration. ### A potential bridge between several quantum **technologies** The researchers also raise the possibility that **magnons** could serve as **universal translators** between different quantum platforms that otherwise cannot easily communicate with each other, a function that could prove crucial as the quantum ecosystem diversifies to a greater **degree**. This inter-platform translation capacity is particularly sought after in a field where several competing architectures coexist, from **superconducting qubits** to **trapped ions**, each with its own strengths and limitations. *A universal translator between rival quantum technologies would, if the **promises** hold up, be one of the most transformative advances of the decade for the entire sector.* ## The concept of a quantum bus ### Connecting hundreds of qubits through a shared pathway Another long-term **goal** raised by the team is the creation of a true **quantum bus**, a shared channel capable of connecting hundreds of **qubits** to one another, a capability actively sought for years by the entire quantum scientific community. Such a bus would help solve one of the biggest obstacles to scaling quantum computers: the growing difficulty of connecting an ever-larger number of qubits without introducing excessive errors or **signal** loss. ### Low-loss communication channels **Magnons**, due to their wave-like nature without electric charge displacement, offer the possibility of creating quantum communication channels with very low energy losses, a potentially decisive advantage over classical electronic interconnects. This characteristic could prove particularly valuable for moving quantum information across a **chip**, an operation that today remains one of the major bottlenecks of large-scale quantum computing. *Solving the qubit-interconnection problem would be almost as important as the breakthrough itself, given how much this technical bottleneck currently holds back the entire quantum industry.* ## A high-intensity global competition ### The West facing China in the quantum race This discovery fits into a context of global technological rivalry in which **China** has invested colossal sums in quantum research, seeking to become the undisputed leader of this **strategic** field by the end of the decade. Faced with this Chinese ambition, breakthroughs like the one from the **Vienna** team carry an importance that goes beyond pure scientific curiosity: they are part of a technological sovereignty stake on which sectors as varied as cryptography, **defense** and finance will eventually depend. ### Ukraine's discreet but real role in this research It's worth noting the participation of researchers affiliated with **Ukrainian** **institutions** in this **international** collaboration, a reminder that **Ukraine**'s scientific capacity continues to contribute to cutting-edge advances despite the context of **war** imposed by Russian aggression. This Ukrainian scientific contribution, though less visible than news from the front, illustrates an often-overlooked dimension of the country's resilience in the face of the invasion. *That Ukrainian researchers continue to contribute to major scientific breakthroughs in the midst of **war** deserves to be highlighted with the same attention given to news from the battlefield.* ## The technology's current limitations ### A stage still far from commercial application Despite the legitimate enthusiasm sparked by these **results**, it is essential to remember that this advance remains at a fundamentally experimental stage, achieved under extreme laboratory conditions that are, for now, absolutely not reproducible at industrial scale. The cryogenic infrastructure needed to reach temperatures close to **absolute zero** remains costly, bulky and maintenance-intensive, which considerably limits the immediate practical reach of this discovery. ### Years of development before any concrete product The researchers themselves acknowledge that several years, if not more, of development will be needed before this technology can lead to functional commercial devices, a timeline that calls for caution against any excessive media hype. This scientific caution, far from diminishing the discovery's importance, actually underscores its methodological seriousness in a field sometimes marked by premature and overhyped announcements. *I far prefer a team that honestly acknowledges the limits of its discovery over exaggerated marketing spin promising the impossible for next year.* ## The economic stakes of a potential breakthrough ### A quantum **market** in full expansion The quantum computing industry is attracting growing investment from Western governments and technology **companies**, convinced that this technology will eventually transform entire sectors, from pharmaceuticals to cryptography to climate modeling. A hardware breakthrough like the one involving **magnons**, if confirmed and further developed, could attract additional capital to this specific research field, strengthening the competitive **position** of European laboratories in this global race. ### The role of public funding in this type of research This kind of high-**risk**, long-horizon fundamental research depends heavily on public university funding, a model of **support** for science that, according to several **experts** in the field, deserves to be strengthened in the face of competition from massive state programs like those deployed by **Beijing**. This study, partly funded by European and American academic **institutions**, illustrates the importance of maintaining a robust fundamental research ecosystem, even when concrete commercial payoffs remain distant. *Every dollar or euro invested in this kind of fundamental research strikes me as a reasonable bet against rivals who, for their part, are not skimping on quantum budgets.* ## What this means for the next stages of research ### Further optimizing the purity of **materials** Since the identified limit is now tied to material purity rather than a fundamental physical constraint, the next logical step for the team and for the entire field will be to develop even purer **YIG** manufacturing processes, capable of further extending the lifespan of **magnons**. This more incremental than revolutionary research direction could nonetheless produce significant cumulative gains over the coming years, as crystal-growth techniques are refined to a greater **degree**. ### Testing these **results** in more complex architectures Beyond improving materials, the researchers will also need to demonstrate that these lifespan gains hold up when **magnons** are integrated into more complex circuit architectures, involving several interconnected components rather than a single isolated sphere in a laboratory. This validation step, under conditions closer to a real application, will be a decisive test of whether this approach can genuinely compete with already more mature rival quantum technologies. *The distance between an impressive laboratory **result** and a functional product remains immense, but every validated step brings this technology a little closer to reality.* ## The broader context of **Western** technological sovereignty ### A battle that extends beyond the quantum sector alone This advance fits into a broader debate about the need for Western democracies to preserve their edge in tomorrow's critical technologies, whether artificial intelligence, semiconductors or quantum computing. Faced with rivals like **China**, **Russia**, **Iran** or **North Korea**, which are investing massively in their own strategic technological capabilities, every **Western** scientific breakthrough helps maintain a balance of power favorable to liberal democracies. ### The implications for long-term national **security** The potential applications of quantum computing in cryptography and communications **security** make this field a national **security** issue in its own right, where a nation's technological lag could one day translate into a major **strategic** vulnerability. It is with this in mind that Western governments, notably in the **United States** and within the **European Union**, continue to generously fund fundamental quantum research, viewing it as a **security** investment as much as an **economic** competitiveness one. *Treating quantum research as a mere academic matter would be a major **strategic** mistake, given how directly its future implications touch the collective **security** of the West.* ## What outside **experts** think ### A broadly positive reception in the scientific community Publication in a peer-reviewed **journal** as well-regarded as **Science Advances** constitutes, in itself, a form of peer validation, an important guarantee of methodological rigor in a field sometimes marked by unverified, exaggerated announcements. Several science commentators have praised the clarity with which the team distinguished fundamental physical limits from limits purely tied to manufacturing, a distinction seen as particularly useful for guiding the community's future efforts. ### Calls for caution on the commercialization timeline Some **experts** outside the study nonetheless call for caution regarding a realistic timeline for any commercial application, noting that the **history** of quantum computing is dotted with promising breakthroughs that later required many additional years before any practical use. This caution does not diminish the scientific importance of the **result**, but it invites placing this discovery within a long-term trajectory rather than a short-term media cycle. *I like that the scientific community itself tempers the media enthusiasm: it's a sign of maturity sorely lacking in other, noisier tech sectors.* ## Comparison with other quantum computing approaches ### Superconducting qubits, trapped ions and photons: a fragmented landscape The quantum industry is currently exploring several competing architectures in parallel, from the **superconducting qubits** favored by major American technology **companies**, to **trapped ions** and **photonic** approaches, each with its own advantages and technical limitations. **Magnons** are not necessarily aiming to replace these existing approaches, but rather to complement them, notably through their miniaturization potential and their possible ability to serve as a bridge between otherwise incompatible architectures. ### A diversification the scientific community sees as healthy Several researchers believe this diversification of technological approaches is, in itself, a strength for the **Western** quantum ecosystem, reducing the **risk** that a single technical obstacle could block the entire sector should a particular architecture reach its fundamental limits. This plurality of research avenues, while costly in resources in the short term, reflects a cautious scientific **strategy** in the face of the uncertainty that still surrounds which technological path will ultimately prevail. *This diversity of approaches reassures me more than it worries me: betting on a single quantum technology would be far riskier for the entire **Western** ecosystem.* ## Conclusion: a modest advance today, major in its potential ### A technical milestone that redefines research priorities Multiplying the lifespan of **magnons** by nearly **a hundred** will not tomorrow translate into pocket-sized quantum computers, but it clearly redefines research priorities for the entire field: material purity, not an insurmountable physical limit, now becomes the main lever for improvement. This methodological reframing, however discreet it may appear to the general public, could significantly accelerate the pace of future progress in this specific subfield of quantum physics. ### A symbol of **Western** scientific resilience In a context of intense global technological competition, this breakthrough from **Vienna**, with **Ukrainian**, **German** and **American** contributions, illustrates the persistent capacity of **Western** research to produce first-rate advances, despite the geopolitical and budgetary challenges of the moment. *I close this report convinced that these small scientific victories, however quiet amid the noise of daily news, rank among the most important for the **future** of the West.* **By Maxime Marquette, columnist** ## Columnist's transparency note ### Editorial stance I am not a journalist but a **columnist and analyst**. My expertise lies in observing and analysing the geopolitical, economic and strategic dynamics that shape our world. My work is to take political strategies apart, to understand global economic movements, to put the decisions of international actors in context and to offer analytical perspectives on the changes that are redefining our societies. I do not claim the cold objectivity of traditional journalism, which stops at reporting facts. **I claim analytical clarity**, rigorous interpretation and a deep understanding of the complex issues that concern us all. My role is to give meaning to the facts, to place them in their historical and strategic context, and to offer a critical reading of events. ### Method and sources This text keeps the basic distinction between **verified facts and interpretive analysis**. The rule never changes: a factual claim is published only when a verifiable source supports it, and the sources this article actually used are listed under **Sources**, never here. **Primary source families** used by the publication, when the story has them: official statements from governments and international institutions, public statements by political leaders, reports from intergovernmental organisations, dispatches from recognised international news agencies. **Secondary source families**: specialised publications, internationally recognised news media, analyses from established research institutions, reports from industry organisations. When an article cites statistical, economic or geopolitical data, it comes from the institutions that produce it (intergovernmental organisations, central banks, national statistics offices), and the exact institution is named under **Sources**. ### Nature of the analysis The analyses, interpretations and perspectives in the analytical sections of this article are a **critical, contextual synthesis** based on the information available, the trends observed and the expert comments cited in the sources consulted. My role is to interpret these facts, to set them in the context of today's geopolitical and economic dynamics, and to give them a coherent meaning within the larger story of the changes shaping our time. These analyses reflect expertise built through continuous observation of international affairs and an understanding of the strategic mechanisms that drive global actors. This article describes a documented state of affairs on its publication date, not a prediction: later developments may shift its outlook. No update is promised in advance; when an article is corrected or completed, the change is dated in the text. ## Sources ### Primary sources - [ScienceDaily — Tiny magnetic waves could unlock quantum computers the size of a penny — July 2, 2026](https://www.sciencedaily.com/releases/2026/06/260626030431.htm) - [Nature Physics — journal page](https://www.nature.com/nphys/) - [American Physical Society — APS News](https://www.aps.org/publications/apsnews/) ### Secondary sources - [Phys.org — Magnon lifetime extended for quantum memory — July 2026](https://phys.org/news/2026-07-magnon-lifetime-quantum-memory.html) - IEEE Spectrum — Magnon quantum storage breakthrough — 2026 - New Scientist — Magnon quantum information storage — 2026 --- Source: Maxime Marquette, MadMax. 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