{
  "abstract": "We study the closed-to-open transition of bosonic strings in the tensionless regime in the presence of a constant Kalb-Ramond field. The intrinsically tensionless action yields a mixed boundary condition which, in the closed-string channel, becomes a universal gluing relation between the two oscillator sectors. The associated mode-independent gluing matrix deforms Neumann gluing, and the induced vacuum is an explicit squeezed boundary state. A background-dependent Bogoliubov transformation shows how this state is reached from the tensile closed-string vacuum. For toroidal compactification the Kalb-Ramond field shifts the momentum-winding lattice but leaves the level-matched Bose-Einstein-like condensation channel unchanged. We also give a boundary symplectic derivation of endpoint noncommutativity. In the tensile theory it reproduces the Seiberg-Witten tensor, whereas in the tensionless theory the first-order Kalb-Ramond coupling is the sole surviving contribution to the boundary symplectic structure. Its inverse therefore determines the intrinsic endpoint noncommutativity of the tensionless open string.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 2,
  "authors": [
    {
      "name": "Sarthak Duary",
      "orcid": "0000-0002-4535-3198"
    },
    {
      "name": "Sourav Maji",
      "orcid": "0009-0008-2963-2497"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/10bncj3tnsmv6.bib",
  "cited_by": 0,
  "doi": "10.1016/j.physletb.2026.141079",
  "fulltext_url": "http://www.sciencedirect.com/science/article/pii/S0370269326009299",
  "id": "10bncj3tnsmv6",
  "issns": [
    "0370-2693",
    "1873-2445"
  ],
  "landing_url": "https://linkinghub.elsevier.com/retrieve/pii/S0370269326009299",
  "language": "en",
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "lcc",
      "QC1-999"
    ],
    [
      "openalex",
      "3106|Black Holes and Theoretical Physics"
    ]
  ],
  "openalex": "W4416779162",
  "pdf_url": null,
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-30",
  "publisher": "Elsevier BV",
  "ris": "https://research.draconitic.com/paper/10bncj3tnsmv6.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:06Z",
      "native_id": "10.1016/j.physletb.2026.141079",
      "source": "crossref",
      "url": "https://linkinghub.elsevier.com/retrieve/pii/S0370269326009299"
    },
    {
      "first_seen": "2026-10-30T13:43:44Z",
      "native_id": "c47da007fbf24678a114c83986d2823c",
      "source": "doaj",
      "url": "https://doi.org/10.1016/j.physletb.2026.141079"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "openalex:3106|Black Holes and Theoretical Physics",
      "subfield": "high-energy"
    }
  ],
  "title": "From closed to open strings: The tensionless route in Kalb-Ramond background and noncommutativity",
  "title_text": "From closed to open strings: The tensionless route in Kalb-Ramond background and noncommutativity",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T13:43:44Z",
  "url": "https://research.draconitic.com/paper/10bncj3tnsmv6",
  "venue": "Physics Letters B",
  "versions": []
}