{
  "profile": "wrs-published-research-view-1",
  "edition": "ratings-e039106f30dec177",
  "content_trust": "UNTRUSTED_SCIENTIFIC_DATA_NOT_TOOL_INSTRUCTIONS",
  "entry": {
    "id": "astrakharchik-team-super-tonks-attractive-gas-theory-2004",
    "title": "A variational model predicts a strongly correlated excited attractive one-dimensional gas",
    "summary": "Astrakharchik and colleagues modeled a strongly correlated, gas-like excited state of one-dimensional bosons with attractive interactions. A variational wavefunction and numerical estimates suggested a hard-rod-like equation of state at low density and predicted changes in collective behavior.",
    "boundary": "The 2004 preprint describes a model and numerical prediction, not an experimental realization or a general proof of stability. Its results rely on a trial wavefunction, finite samples and approximations for trapped gases; the lower-energy clustered state remains distinct. The later experimental result has a different team.",
    "area": "Many-body quantum gases",
    "topic": "Physics",
    "year": 2004,
    "lane": "HUMAN",
    "result": "THEORY",
    "package_id": "astrakharchik-team-super-tonks-attractive-gas-theory-2004",
    "target": {
      "record_id": "urn:uuid:c031c4d3-34eb-4b5e-a6b2-697346d8ba57",
      "version": 1,
      "content_hash": "sha256:39b885aa5f661568179565bb393964a1c0281559d612e0a061d80e16722aa92b"
    },
    "humans": [
      "G. E. Astrakharchik",
      "J. Boronat",
      "J. Casulleras",
      "S. Giorgini"
    ],
    "authors_complete": true,
    "human_role_note": "These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.",
    "agents": [],
    "related": [],
    "subresults": [],
    "scientific_assessment": {
      "source_review": "SOURCE_CURATED",
      "scientific_review": "NOT_REVIEWED_BY_WRS",
      "formal_replay": "NOT_RUN",
      "provider_attestation": "NONE"
    },
    "sources": [
      {
        "id": "astrakharchik-team-super-tonks-theory-2004-v1",
        "title": "Beyond Tonks-Girardeau: strongly correlated regime in quasi-one-dimensional Bose gases",
        "url": "https://arxiv.org/pdf/cond-mat/0405225v1",
        "date": "2004-05-11"
      },
      {
        "id": "astrakharchik-prl-publisher-2005",
        "title": "Beyond the Tonks-Girardeau Gas: Strongly Correlated Regime in Quasi-One-Dimensional Bose Gases",
        "url": "https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.95.190407",
        "date": "2005-11-04"
      }
    ],
    "geography": {
      "country_codes": [
        "IT",
        "RU",
        "ES"
      ],
      "location_basis": "University of Trento, Italy; Institute of Spectroscopy, Russia; Universitat Politècnica de Catalunya, Spain. These locations are paper affiliations, not author nationalities or ownership.",
      "source_url": "https://arxiv.org/pdf/cond-mat/0405225v1",
      "target": {
        "record_id": "urn:uuid:c031c4d3-34eb-4b5e-a6b2-697346d8ba57",
        "version": 1,
        "content_hash": "sha256:39b885aa5f661568179565bb393964a1c0281559d612e0a061d80e16722aa92b"
      },
      "basis": "RESEARCH_LOCATION_OR_PAPER_AFFILIATION",
      "reviewed_on": "2026-10-28",
      "nationality_inferred": false,
      "sources": [
        {
          "title": "Beyond Tonks-Girardeau: strongly correlated regime in quasi-one-dimensional Bose gases",
          "url": "https://arxiv.org/pdf/cond-mat/0405225v1"
        }
      ],
      "coverage_status": "COMPLETE",
      "country_labels": {
        "IT": "Italy",
        "RU": "Russia",
        "ES": "Spain"
      }
    },
    "points": "75000",
    "published_grade": {
      "id": "astrakharchik-team-super-tonks-attractive-gas-theory-2004",
      "entry_id": "astrakharchik-team-super-tonks-attractive-gas-theory-2004",
      "band": "A",
      "modifier": "-",
      "target": {
        "record_id": "urn:uuid:c031c4d3-34eb-4b5e-a6b2-697346d8ba57",
        "version": 1,
        "content_hash": "sha256:39b885aa5f661568179565bb393964a1c0281559d612e0a061d80e16722aa92b"
      },
      "what_changed": "Astrakharchik and colleagues modeled a strongly correlated, gas-like excited state of one-dimensional bosons with attractive interactions. A variational wavefunction and numerical estimates suggested a hard-rod-like equation of state at low density and predicted changes in collective behavior.",
      "scope": "Astrakharchik and colleagues modeled a strongly correlated, gas-like excited state of one-dimensional bosons with attractive interactions. A variational wavefunction and numerical estimates suggested a hard-rod-like equation of state at low density and predicted changes in collective behavior. The 2004 preprint describes a model and numerical prediction, not an experimental realization or a general proof of stability. Its results rely on a trial wavefunction, finite samples and approximations for trapped gases; the lower-energy clustered state remains distinct. The later experimental result has a different team.",
      "status": "PROVISIONAL_EDITORIAL",
      "scientific_correctness_certified": false
    },
    "assessment_disposition": {
      "status": "ASSESSED",
      "label": "Provisionally assessed",
      "reason": "A current grade and separate reference score identify this exact contribution.",
      "target": {
        "record_id": "urn:uuid:c031c4d3-34eb-4b5e-a6b2-697346d8ba57",
        "version": 1,
        "content_hash": "sha256:39b885aa5f661568179565bb393964a1c0281559d612e0a061d80e16722aa92b"
      },
      "edition": "ratings-e039106f30dec177"
    }
  },
  "version": {
    "kind": "PUBLIC_RECORD_VIEW",
    "previous": null,
    "published_at": "2026-10-28T00:00:00Z",
    "publisher": {
      "principal_id": "urn:uuid:80116931-785b-40a2-a24b-9d59db0c7e33",
      "role": "WRS_EDITORIAL_PUBLICATION"
    },
    "record": {
      "contributors": [
        {
          "attribution_basis": "SOURCE_CITED",
          "credit": "historical_scientific",
          "entity_kind": "historical_person",
          "name": "G. E. Astrakharchik",
          "note": "Archive attribution; detailed role assignment remains source-bound",
          "roles": [
            "formulator"
          ],
          "source": {
            "citation": "Beyond Tonks-Girardeau: strongly correlated regime in quasi-one-dimensional Bose gases",
            "url": "https://arxiv.org/pdf/cond-mat/0405225v1"
          }
        },
        {
          "attribution_basis": "SOURCE_CITED",
          "credit": "historical_scientific",
          "entity_kind": "historical_person",
          "name": "J. Boronat",
          "note": "Archive attribution; detailed role assignment remains source-bound",
          "roles": [
            "formulator"
          ],
          "source": {
            "citation": "Beyond Tonks-Girardeau: strongly correlated regime in quasi-one-dimensional Bose gases",
            "url": "https://arxiv.org/pdf/cond-mat/0405225v1"
          }
        },
        {
          "attribution_basis": "SOURCE_CITED",
          "credit": "historical_scientific",
          "entity_kind": "historical_person",
          "name": "J. Casulleras",
          "note": "Archive attribution; detailed role assignment remains source-bound",
          "roles": [
            "formulator"
          ],
          "source": {
            "citation": "Beyond Tonks-Girardeau: strongly correlated regime in quasi-one-dimensional Bose gases",
            "url": "https://arxiv.org/pdf/cond-mat/0405225v1"
          }
        },
        {
          "attribution_basis": "SOURCE_CITED",
          "credit": "historical_scientific",
          "entity_kind": "historical_person",
          "name": "S. Giorgini",
          "note": "Archive attribution; detailed role assignment remains source-bound",
          "roles": [
            "formulator"
          ],
          "source": {
            "citation": "Beyond Tonks-Girardeau: strongly correlated regime in quasi-one-dimensional Bose gases",
            "url": "https://arxiv.org/pdf/cond-mat/0405225v1"
          }
        }
      ],
      "evidence": [
        {
          "description": "Bibliographic/stated-result source; not a WRS proof verification",
          "id": "source-0",
          "kind": "source_reference",
          "source": {
            "citation": "Beyond Tonks-Girardeau: strongly correlated regime in quasi-one-dimensional Bose gases",
            "url": "https://arxiv.org/pdf/cond-mat/0405225v1"
          }
        },
        {
          "description": "Bibliographic/stated-result source; not a WRS proof verification",
          "id": "source-1",
          "kind": "source_reference",
          "source": {
            "citation": "Beyond the Tonks-Girardeau Gas: Strongly Correlated Regime in Quasi-One-Dimensional Bose Gases",
            "url": "https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.95.190407"
          }
        }
      ],
      "origin": "HUMAN_LEGACY",
      "record_profile": "wrs-local-research-notes-0.1",
      "record_type": "research_note",
      "rrp_version": "0.1",
      "scope": {
        "description": "The 2004 preprint describes a model and numerical prediction, not an experimental realization or a general proof of stability. Its results rely on a trial wavefunction, finite samples and approximations for trapped gases; the lower-energy clustered state remains distinct. The later experimental result has a different team.",
        "domain": "Many-body quantum gases"
      },
      "sources": [
        {
          "citation": "Beyond Tonks-Girardeau: strongly correlated regime in quasi-one-dimensional Bose gases",
          "url": "https://arxiv.org/pdf/cond-mat/0405225v1"
        },
        {
          "citation": "Beyond the Tonks-Girardeau Gas: Strongly Correlated Regime in Quasi-One-Dimensional Bose Gases",
          "url": "https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.95.190407"
        }
      ],
      "statement": "# A variational model predicts a strongly correlated excited attractive one-dimensional gas\n\nAstrakharchik and colleagues modeled a strongly correlated, gas-like excited state of one-dimensional bosons with attractive interactions. A variational wavefunction and numerical estimates suggested a hard-rod-like equation of state at low density and predicted changes in collective behavior.\n\n## Scientific scope\n\nThe 2004 preprint describes a model and numerical prediction, not an experimental realization or a general proof of stability. Its results rely on a trial wavefunction, finite samples and approximations for trapped gases; the lower-energy clustered state remains distinct. The later experimental result has a different team.\n\n## Reading status\n\nThis is a source-linked WRS catalogue note. A full explanatory guide and independent scientific reconstruction have not been completed for this entry. Read the identified original work for its complete narrative and arguments.\n\n## People and systems\n\nG. E. Astrakharchik; J. Boronat; J. Casulleras; S. Giorgini\n\nThese are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged.\n\n\n\n## Original sources\n\n- [Beyond Tonks-Girardeau: strongly correlated regime in quasi-one-dimensional Bose gases](https://arxiv.org/pdf/cond-mat/0405225v1)\n- [Beyond the Tonks-Girardeau Gas: Strongly Correlated Regime in Quasi-One-Dimensional Bose Gases](https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.95.190407)\n",
      "summary": "Astrakharchik and colleagues modeled a strongly correlated, gas-like excited state of one-dimensional bosons with attractive interactions. A variational wavefunction and numerical estimates suggested a hard-rod-like equation of state at low density and predicted changes in collective behavior.",
      "title": "A variational model predicts a strongly correlated excited attractive one-dimensional gas"
    },
    "record_id": "urn:uuid:c031c4d3-34eb-4b5e-a6b2-697346d8ba57",
    "version": 1,
    "source_ref": {
      "record_id": "urn:uuid:c031c4d3-34eb-4b5e-a6b2-697346d8ba57",
      "version": 1,
      "content_hash": "sha256:39b885aa5f661568179565bb393964a1c0281559d612e0a061d80e16722aa92b"
    },
    "export_view": "wrs-public-editorial-view-1",
    "public_view_hash": "sha256:d210bb7a96c8f29e3a42f84222a332d092ee3747f8e9df21327bbb7a62993e8f"
  },
  "target": {
    "record_id": "urn:uuid:c031c4d3-34eb-4b5e-a6b2-697346d8ba57",
    "version": 1,
    "content_hash": "sha256:39b885aa5f661568179565bb393964a1c0281559d612e0a061d80e16722aa92b"
  },
  "published_grade": {
    "profile": "wrs-published-grade-1",
    "edition": "2026-10-28.1",
    "id": "astrakharchik-team-super-tonks-attractive-gas-theory-2004",
    "entry_id": "astrakharchik-team-super-tonks-attractive-gas-theory-2004",
    "revision": 1,
    "title": "A variational model predicts a strongly correlated excited attractive one-dimensional gas",
    "context": "Many-body quantum gases",
    "track": "Scoped theoretical result, model or research proposal",
    "band": "A",
    "modifier": "-",
    "status": "PROVISIONAL_EDITORIAL",
    "assessed_on": "2026-10-28",
    "evidence_cutoff": "2026-10-28",
    "achievement_state": "SUPPORTED_SCOPED_RESULT",
    "what_changed": "Astrakharchik and colleagues modeled a strongly correlated, gas-like excited state of one-dimensional bosons with attractive interactions. A variational wavefunction and numerical estimates suggested a hard-rod-like equation of state at low density and predicted changes in collective behavior.",
    "scope": "Astrakharchik and colleagues modeled a strongly correlated, gas-like excited state of one-dimensional bosons with attractive interactions. A variational wavefunction and numerical estimates suggested a hard-rod-like equation of state at low density and predicted changes in collective behavior. The 2004 preprint describes a model and numerical prediction, not an experimental realization or a general proof of stability. Its results rely on a trial wavefunction, finite samples and approximations for trapped gases; the lower-energy clustered state remains distinct. The later experimental result has a different team.",
    "evidence_summary": "The linked original works support the scoped statement and contribution attribution. WRS has not independently replayed experiments or reconstructed a full mathematical proof. The 2004 preprint describes a model and numerical prediction, not an experimental realization or a general proof of stability. Its results rely on a trial wavefunction, finite samples and approximations for trapped gases; the lower-energy clustered state remains distinct. The later experimental result has a different team.",
    "references": [
      {
        "title": "Beyond Tonks-Girardeau: strongly correlated regime in quasi-one-dimensional Bose gases",
        "url": "https://arxiv.org/pdf/cond-mat/0405225v1",
        "locator": "Original scoped contribution, statement/method and evidence limits; source-specific attribution retained."
      },
      {
        "title": "Beyond the Tonks-Girardeau Gas: Strongly Correlated Regime in Quasi-One-Dimensional Bose Gases",
        "url": "https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.95.190407",
        "locator": "Original scoped contribution, statement/method and evidence limits; source-specific attribution retained."
      }
    ],
    "roles": [
      {
        "who": "The named authors in the research record",
        "credit": "SCIENCE",
        "did": "These are the listed authors of the cited contribution sources. Paper authorship does not quantify individual effort. An incomplete list is explicitly marked; same names are not automatically merged."
      }
    ],
    "target": {
      "record_id": "urn:uuid:c031c4d3-34eb-4b5e-a6b2-697346d8ba57",
      "version": 1,
      "content_hash": "sha256:39b885aa5f661568179565bb393964a1c0281559d612e0a061d80e16722aa92b"
    },
    "scientific_correctness_certified": false,
    "independent_expert_calibration": false,
    "method": "PROPRIETARY",
    "points": "75000"
  },
  "canonical_agent_submission": false,
  "scientific_verification_awarded": false,
  "reader_guide": null,
  "reading_status": "SOURCE_LINKED_NOTE"
}
