Week of October 26, 2026

Monday, October 26

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  Supercurrent enables the reading of quantum information without destroying it

  A proposed Andreev‑qubit design reads quantum states via an oscillating supercurrent detected by a SQUID, offering a near‑nondestructive alternative to ancilla‑based readout.

  Phys.org Quantum Physics·00:17 UTC
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  Researchers Build Shorter Quantum Error Correction Codes

  Dayalbagh researchers have devised compact triorthogonal qudit error‑correction codes that cut resource overhead for quantum computing, especially qutrit magic‑state distillation, by up to an order of magnitude.

  Quantum Zeitgeist·00:17 UTC
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  Temporal Degeneracy Limits Message Passing Decoding of QLDPC Codes Under Repeated Noisy Syndrome Measurements

  Temporal degeneracy in repeated noisy syndrome measurements creates low‑weight error patterns that undermine standard message‑passing decoders for QLDPC codes, but anisotropic min‑sum decoding can mitigate these failures.

  arXiv Quantum Physics·06:31 UTC
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  Quantum Complexity and Stabilizer-State Expansions: From Pairing to Deformation in Fermionic Systems

  The paper explores how entanglement, non‑stabilizerness, and fermionic non‑Gaussianity differentiate deformation and pairing phases in a fermionic model, and shows how stabilizer‑state expansions combined with symmetry‑preserving rotations can efficiently capture these phases for scalable simulation.

  arXiv Quantum Physics·06:32 UTC
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  Pavia Team Models How Shaped Lasers Improve Ion Quantum Gates

  Shaped laser gradients that excite axial phonons can cut crosstalk and spectral crowding, offering a clearer path to scalable trapped‑ion quantum gates.

  Quantum Zeitgeist·08:11 UTC