quant-ph · 2026-09-09 · No. 110

Quantum Physics, 2026-09-09.

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

    Impossibility of One-Way One-Round Quantum 4-Coloring via Matrix-Space Stability

    Tom Gur, Longcheng Li

    quant-ph · cs.DC

    We show that one-way one-round quantum LOCAL algorithms cannot $4$-color directed cycles with high probability, even with unbounded local computation and quantum message length. This is the first lower bound in the high-probability quantum LOCAL setting that goes beyond the non-signaling and bounded-dependence models, exploiting the structure of distributed quantum algorithms. Our proof connects distributed quantum computing with...

    arxiv.org/abs/2609.09091 · PDF

  2. 02

    Transversal Fanout for Fault Tolerant Distributed Quantum Computing: Analysis and Application

    Seng W. Loke

    quant-ph · cs.DC

    We study a resource-efficient approach for implementing logical fanout operations in fault-tolerant distributed quantum computing using transversal operations on quantum error-correcting code blocks. Logical fanout, comprising multiple controlled-NOT operations from a common control qubit to target qubits located at remote nodes, is an important primitive for distributed quantum computation but can require substantial non-local communication...

    arxiv.org/abs/2609.08233 · PDF

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