quant-ph · 2026-09-11 · No. 112

Quantum Physics, 2026-09-11.

3 new papers in quant-ph. Titles, authors, abstracts. Links to arXiv. Want this in your inbox every morning? Subscribe →

01 — The papers

3 entries
  1. 01

    Learning structural balance of graphs from quantum spectral features

    Stefano Scali, Oleksandr Kyriienko

    quant-ph · cond-mat.dis-nn · cs.LG · cs.SI

    We develop a quantum approach to spectral feature extraction from the density of states (DOS) of a problem-dependent Hamiltonian, and apply it to machine learning on signed graphs. We propose to embed a signed graph as an Ising model instance with positive and negative interactions, and use the standardized moments of the Ising DOS as features for learning. We show that these moments count signed closed walks, are switching-invariant, and are...

    arxiv.org/abs/2609.11736 · PDF

  2. 02

    Generative Replay Mitigates Sample Starvation in Quantum Architecture Search

    Akash Kundu, Amit Kumar Jaiswal, Sebastian Feld, Prayag Tiwari

    quant-ph · cs.AI · cs.ET · cs.LG

    Reinforcement learning (RL) can automate quantum architecture search, but its scalability is limited when useful circuit trajectories become rare in the rapidly expanding search space. Existing replay mechanisms reuse observed transitions; the proposed learned model produces additional predicted one step transitions from real state-action seeds. Here we introduce GenQAS, a tensor network-guided RL framework that combines a fixed matrix...

    arxiv.org/abs/2609.11248 · PDF

  3. 03

    Coherent Floquet quantum reservoirs for molecular property prediction

    Luofei Wang, Da Zhang, Congren Wang, Yiming Li, Yuxiao Yang, Xuan Zhang, Xuefeng Cui, Zhang-Qi Yin

    quant-ph · cs.LG

    Quantum reservoir computing (QRC) uses quantum dynamics to represent input histories for prediction through a trained classical readout. Discrete time crystals (DTCs) exhibit robust subharmonic responses under periodic driving, and previous work has used their dynamics to construct DTC-QRC. Here we construct a DTC-based reservoir architecture to predict molecular properties from structural and dynamical observations. Coherent Floquet...

    arxiv.org/abs/2609.11071 · PDF

This edition is part of The Daily Abstract — quant-ph archive. Subscribe to receive these in your inbox each morning, automatically translated to Spanish, with reply-to-PDF: arxivdaily.ignorelist.com.

Colophon Set in Georgia, with system sans for interface chrome and a monospaced stack for code and paper identifiers. Sole accent: amber #D99C5E. Built and served on an always-free VM. The masthead is set 14% letterspaced because newspapers do that and it works.