{
  "annotation_id": "333d8aa3-fd18-420f-b30d-43ffee8fc9a6",
  "date_created": "2026-02-17T05:53:20.114000Z",
  "date_modified": "2026-02-17T05:53:20.114000Z",
  "file_hash": "db6686895c7e4ea3455716fcd260fe51a005055b4a56087dade76d8a26f7402d",
  "private": false,
  "record": {
    "abstract": "Coherent multidimensional spectroscopy enables detailed investigations of vibronic effects in molecular and solid-state systems. We present explicit analytical expressions for multidimensional nonlinear response functions in the presence of Herzberg-Teller (non-Condon) coupling, within the displaced harmonic oscillator model. The formulation applies to electronic systems with an arbitrary number N of electronic states and to response functions of arbitrary order M in the light-matter interaction. We show that Herzberg-Teller coupling introduces additional oscillatory factors in the time-domain response functions, leading, upon Fourier transformation, to replicas of the Franck-Condon multidimensional spectra shifted by integer multiples of the vibrational frequencies. The present results provide a general analytical framework for the interpretation of non-Condon effects in coherent multidimensional spectroscopies.",
    "arxiv_id": "2601.09346",
    "authors": [
      "Filippo Troiani"
    ],
    "categories": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "title": "Herzberg-Teller coupling in coherent multidimensional spectroscopy: analytical response functions for multilevel systems",
    "url": "https://arxiv.org/abs/2601.09346",
    "version": "v1"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "93fc7d3b-e4f9-4259-a5f8-06a8b26d32dc",
    "id": "arXiv Dataset",
    "type": "Model",
    "variant": "snapshot-2026-01-17",
    "version": "0.1.0"
  },
  "user_id": 1000002
}