Super-extensive charging power in the absence of global operations

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• Physics/Quantum physics & computingSep 23, 2026

  In-orbit operation of a programmable quantum photonic processor

  Here, we report a programmable quantum photonic platform operating on a nanosatellite, processing two photons in a six-mode universal integrated circuit.

  Simon Steiner, Peter Schiansky, Antonius Scherer and 17 more — arXiv

  PreprintClaims a big stepReal-world use

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• Physics/Quantum physics & computingSep 23, 2026

  Nonlocal advantage of quantum coherence in tau-lepton pairs from electron--positron collisions

  Unlike other systems, tau-lepton pair (${\tau }^{+}{\tau }^{-}$) production in electron--positron ($e^{+}{e}^{-}$) collisions provides an ideal testing ground, as it exhibits strong quantum correlations and, in particular, NAQC over a large region of phase space.

  Yoav Afik, Juan Ram\'on Mu\~noz de Nova, Sarthak Sharma and 1 more — arXiv

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• Physics/Quantum physics & computingSep 23, 2026

  Bridge of $\Psi$'s: Quantum Circuit Optimization with Schr\"odinger Bridges

  On held-out 8 qubits $\times$ 64 depth Clifford+$T$ circuits, BOPS reduces gate count by $2.46\times$ and depth by $2.45\times$ in geometric mean, outperforming all nine baseline optimizers.

  Lino S. Hofstetter, Lia Yeh, Prakash Murali — arXiv

  PreprintBold claims, read criticallyClaims a big stepReal-world use

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• Physics/Quantum physics & computingSep 23, 2026

  Quantum Advantage for Distributed Symmetry Breaking

  We present a distributed quantum algorithm that $3$-colors cycles in $O(1)$ rounds, with high probability.

  Maxime Flin, Longcheng Li, Jukka Suomela — arXiv

  PreprintClaims a big step

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• Physics/Quantum physics & computingSep 23, 2026

  Thermodynamic Proof of Quantumness without Structure

  Thus, in the random-oracle setting, sufficiently low energy consumption in a successful implementation certifies quantumness through a macroscopic thermodynamic observation of energy consumption.

  Florian Meier, Hayata Yamasaki — arXiv

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