Tailor-made error shields could fix quantum memory at scale

Quantum computers promise to solve problems classical machines can’t crack, but their memory layer—the quantum random access memory, QRAM—has been the stubborn bottleneck. QRAMs are meant to let a quantum processor fetch data from a database in a superposition, enabling powerful operations like searching an unordered database or assembling a desired quantum state directly from…

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Two Groups, One Economy, and a Hidden Policy Clause

The field of econophysics thrives on a simple idea wearing a much bigger coat: tiny, everyday exchanges between individuals can ripple into huge shifts in wealth across a whole society. The paper by Thiago Dias and Sebastie1n Gone7alves from Brazilian universities takes that idea and asks a provocative question in a very human setting: what…

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What Happens When Alive Matters More?

The world of clinical trials often feels like a race to prove one word: effective. Yet patients don’t live in single moments of success—their lives are a stream of events: hospital visits, aches, hospital stays, and sometimes the final, terminal event. Traditional analyses tend to spotlight the first major event and then stop, as if…

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Cracking the Code of Critical Multitype Branching Trees

In the study of complex systems—think epidemics with different susceptibilities, cell communities with many kinds, or sprawling networks—scientists model the growth as a branching process: each individual spawns a random number of offspring, each with its own type. A frontier case emerges when the average number of offspring per individual hovers exactly at one; this…

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Estimations Meet Reality and Your Budget Might Adapt

Budgeting for a year of conferences, trips, or family plans is a ritual of estimation and compromise. You sketch rough costs for flights, hotels, and registrations, then you improvise as receipts arrive and prices wobble. A new study turns this everyday uncertainty into a mathematics of decision making. It asks a deceptively simple question: if…

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Fluid Drape Over a Black Hole Reveals New Orbits

Black holes are not solitary voids; they live in neighborhoods. In a study led by Ariadna Uxue Palomino Ylla at Nagoya University, with colleagues Yasutaka Koga and Chul-Moon Yoo, researchers treat a black hole as if it wears a cloak—steely, invisible, and moving in step with a steady flow of matter. The work, a collaboration…

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A Fresh Compass for Anisotropy in f(Q) Gravity

The cosmos we inhabit is astonishingly uniform on large scales, yet the whispers of subtle irregularities still echo through the data. The standard story—that space is, for all practical purposes, the same in all directions and at all places—rests on Einstein’s theory of gravity and the simple, elegant FLRW model. But physicists love to poke…

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Is Speed in Graphs Always Worth Its Message Cost?

In the world of distributed computing, speed is measured in two ways that rarely line up perfectly: how many rounds of communication you need (time) and how many messages you churn through (the bill for bandwidth, energy, and processing). For decades, researchers have chased near-optimal time with clever protocols, then separately chased tight message budgets…

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Linked Horseshoes Hint at Chaos in Four Dimensions

Four-dimensional dynamics isn’t a party you can easily picture. The usual three-dimensional intuition—where a butterfly’s wings tremble into a roar of chaos—loses its footing when extra dimensions enter the room. Yet a new lineage of mathematical work has found a way to choreograph chaos in a space that feels almost alien: a four-dimensional stage built…

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Anomaly Maps Guide AI to Find Prostate Cancer

In MRI suites around the world, radiologists parse intricate textures and shapes, hunting for the telltale signs of clinically significant prostate cancer. It’s a careful craft, a blend of pattern recognition and medical intuition, and it can be slow—especially when clinicians must comb through thousands of slices to segment the exact tumor boundaries. A new…

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