{
  "abstract": "We exhibit a classical oracle relative to which QMA \\neq QMA(2). The separation is based on a separable Hamiltonian problem defined by signed edge constraints on a graph. The YES instances have zero-energy product states, while the NO instances, constructed using the antisymmetric subspace, have entangled zero-energy states but no low-energy product states. For the QMA lower bound, we use compressed-oracle techniques to track the information learned by a quantum computation making few queries to a YES instance. The key step is to map the resulting superpositions of partial oracle records to the NO family without significantly changing the verifier's behavior.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.06760",
  "author_total": 3,
  "authors": [
    {
      "name": "Sabee Grewal"
    },
    {
      "name": "Saachi Mutreja"
    },
    {
      "name": "Kabir Tomer"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/79n2yetma9w5a.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.06760",
  "fulltext_url": null,
  "id": "79n2yetma9w5a",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.06760",
  "language": null,
  "licence": "CC-BY-NC-SA-4.0",
  "licence_label": "CC BY-NC-SA 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "quant-ph"
    ],
    [
      "openalex",
      "1702|Quantum Computing Algorithms and Architecture"
    ]
  ],
  "openalex": "W7220723333",
  "pdf_url": "https://arxiv.org/pdf/2610.06760",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-05",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/79n2yetma9w5a.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:27:01Z",
      "native_id": "2610.06760",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.06760"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:quant-ph",
      "subfield": "quantum"
    }
  ],
  "title": "A classical oracle separation between QMA and QMA(2)",
  "title_text": "A classical oracle separation between QMA and QMA(2)",
  "type": "preprint",
  "updated_at": "2026-11-06T18:21:10Z",
  "url": "https://research.draconitic.com/paper/79n2yetma9w5a",
  "venue": "arXiv",
  "versions": []
}