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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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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