{
  "annotation_id": "0ab4c76d-377d-416c-83c7-e93b50e11465",
  "date_created": "2026-02-17T05:53:26.426000Z",
  "date_modified": "2026-02-17T05:53:26.426000Z",
  "file_hash": "31e8249e2b6c2c99aef6215468b1beb1809b0726feccf65e8bd98cefb62c72e4",
  "private": false,
  "record": {
    "abstract": "We investigate the role of strong Coulomb interactions beyond the standard Hubbard model in two distinct physical contexts. First, we analyze the superconducting phase transition occurring near the Mott metal-insulator transition. Second, we study transport properties of artificial nano-scale structures containing quantum dots coupled to external electrodes. In both cases, we focus on the impact of the correlated (assisted) hopping (CH) interaction. For superconductors, CH acts as a driving mechanism for the phase transition and modifies the spectral properties of the system. We present the evolution of the spectral function as the system approaches the Mott-type transition under varying model parameters. In quantum-dot-based devices, CH influences the tunneling amplitude between the dot and metallic leads. We demonstrate that the characteristic changes in the conductance of a normal metal-quantum dot-normal metal structure provide a clear signature of the presence and sign of CH interaction.",
    "arxiv_id": "2601.10619",
    "authors": [
      "Karol I. Wysoki\u0144ski",
      "Marcin M. Wysoki\u0144ski"
    ],
    "categories": [
      "cond-mat.str-el"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "title": "Beyond Hubbard: the role of correlated hopping interaction in superconductors and quantum dot devices",
    "url": "https://arxiv.org/abs/2601.10619",
    "version": "v1"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "4b801165-44af-42dd-b605-0b62e930bd45",
    "id": "arXiv Dataset",
    "type": "Model",
    "variant": "snapshot-2026-01-17",
    "version": "0.1.0"
  },
  "user_id": 1000002
}