{
  "abstract": "Dense-neutrino flavor evolution is a quantum many-body problem whose fully correlated treatment becomes rapidly more expensive with increasing particle number and spatial structure. We develop a \\texttt{QCNO} quantum simulation code that maps a inhomogeneous forward-scattering neutrino Hamiltonian with advection and finite-range interactions to TEBD2 product-formula quantum circuits, and connects ideal many-body simulation, backend-aware execution, and fault-tolerant resource estimation within the same physical model. We reproduce the exact many-body evolution of the suppressed mean-field-like transverse fast flavor instability through $N=30$ and show that even a single open-boundary interaction generates Rënyi entanglement and non-stabilizer magic, although noisy backends still produce polarization RMSEs of order $0.1$--$0.3$. The restricted active interaction graph of this problem allows us to estimate the circuit depth and $T$ gate cost through $N=50$ for both NISQ and fault-tolerant approaches. The measured TEBD2 error in our fiducial ideal simulation of order $10^{-3}$ motivates a synthesis tolerance $\\varepsilon_{\\rm syn}\\sim10^{-7}$, corresponding to about $70$ $T$ gates per $R_Z$ rotation. The generated circuit contains $1.4\\times10^4$ $T$ gates per qubit for open boundaries (twice that for closed boundaries), requiring an application-level logical-$T$ error target of order $10^{-7}$ for early fault-tolerant architectures.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.12334",
  "author_total": 5,
  "authors": [
    {
      "name": "Zoha Laraib"
    },
    {
      "name": "Sherwood Richers"
    },
    {
      "name": "Alessandro Baroni"
    },
    {
      "name": "Kathleen Hamilton"
    },
    {
      "name": "In-Saeng Suh"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/0vn6g6qsm9rt6.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.12334",
  "fulltext_url": null,
  "id": "0vn6g6qsm9rt6",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.12334",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "astro-ph.HE"
    ],
    [
      "arxiv",
      "quant-ph"
    ],
    [
      "openalex",
      "1702|Quantum Computing Algorithms and Architecture"
    ]
  ],
  "openalex": "W7221072213",
  "pdf_url": "https://arxiv.org/pdf/2610.12334",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-08",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/0vn6g6qsm9rt6.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:27:54Z",
      "native_id": "2610.12334",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.12334"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.HE",
      "subfield": "high-energy-astrophysics"
    },
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "Quantum Co-Design of Inhomogeneous Many-Body Neutrino Fast Flavor Transformation",
  "title_text": "Quantum Co-Design of Inhomogeneous Many-Body Neutrino Fast Flavor Transformation",
  "type": "preprint",
  "updated_at": "2026-10-30T12:27:54Z",
  "url": "https://research.draconitic.com/paper/0vn6g6qsm9rt6",
  "venue": "arXiv",
  "versions": []
}