Author

Aleksander Kubica

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Preprint Sep 2026

Entropy threshold: A simple proxy for performance of quantum error correction

The rapidly growing landscape of quantum error-correction (QEC) protocols has produced a wealth of numerical data, but comparatively few heuristics for understanding and predicting their performance. Here, we develop a simple entropy-based proxy that predicts the thresholds of a variety of QEC protocols, ranging from t...

Diego Ruiz, A. Kubica · 0 citations

Preprint Jul 2026

Magic Gate Teleportation: Structure, Useful Resource States, and Simpler Feedforward

A hidden structure within MGT is uncovered -- after backpropagating the Pauli measurements, MGT protocols can be viewed as encoding the input state into a stabilizer code heralded by the measurement outcomes, followed by a logical non-Clifford gate.

Yunzhe Zheng, A. Zang, Aleksander Kubica · 1 citation

Preprint Jul 2026

Fault-tolerant distributed quantum computing with a single nucleus per node

Distributed quantum computing interconnects small, high-quality nodes through optical links, but this architecture carries a pronounced asymmetry: in-node gates and measurements are cheap and high-fidelity, whereas inter-node communication relies on a low-coherence communication qubit and faulty photonics. Previous app...

Yotam Vaknin, Shoham Jacoby, Roi Nevo et al. · 0 citations