quant-ph · 2026-07-05 · No. 44

Quantum Physics, 2026-07-05.

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

01 — The papers

2 entries
  1. 01

    Optimal Stabilizer Testing and Learning with Limited Quantum Memory

    Srinivasan Arunachalam, Louis Schatzki

    quant-ph · cs.CC · cs.DS · cs.IT · cs.LG

    We study stabilizer state testing and learning with limited coherent quantum memory. Here an algorithm sequentially receives copies of an unknown $n$-qubit state, but may keep only $k$ qubits of coherent quantum memory between measurements. With unrestricted memory, seminal work of Gross, Nezami and Walter showed how to test $n$-qubit stabilizer states using $6$ copies, which is dimension independent, unlike the learning complexity of $Θ(n)$....

    arxiv.org/abs/2607.02444 · PDF

  2. 02

    Stable Self-Modulating Quantum Fast-Weight Programmers with Bounded Memory Gates

    Kuo-Chung Peng, Jiun-Cheng Jiang, Chun-Hua Lin, Yifeng Peng, Junghoon Justin Park, Huan-Hsin Tseng, Hsin-Yi Lin,...

    quant-ph · cs.AI · cs.ET · cs.LG · cs.NE

    Quantum Fast-Weight Programmers (QFWPs) store temporal information in dynamically programmed variational-circuit parameters rather than in nonlinear recurrent hidden states, offering a practical route to quantum sequence modeling. Self-Modulating QFWP improves this framework by using input-dependent gates for both new fast-weight updates and the accumulated fast-weight state, but its unbounded old-state multiplier can diverge in long-sequence...

    arxiv.org/abs/2607.02363 · PDF

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