{
  "annotation_id": "dcab0b22-757f-4a0d-be3c-41972001531a",
  "date_created": "2026-03-02T18:00:46.962000Z",
  "date_modified": "2026-03-02T18:00:46.962000Z",
  "file_hash": "0f3efc002775fe902fad4bb4f107f8b72507b6f9f96e0419400239317bae12d9",
  "private": false,
  "record": {
    "abstract": "In this paper, we present an approximate expression for determining the\neffective permittivity describing the coherent propagation of an\nelectromagnetic wave in random media. Under the Quasicrystalline Coherent\nPotential Approximation (QC-CPA), it is known that multiple scattering theory\nprovided an expression for this effective permittivity. The numerical\nevaluation of this one is, however, a challenging problem. To find a tractable\nexpression, we add some new approximations to the (QC-CPA) approach. As a\nresult, we obtained an expression for the effective permittivity which\ncontained at the same time the Maxwell-Garnett formula in the low frequency\nlimit, and the Keller formula, which has been recently proved to be in good\nagreement for particles exceeding the wavelength.",
    "arxiv_id": "physics/0312117",
    "authors": [
      "A. Soubret",
      "G. Berginc"
    ],
    "categories": [
      "physics.optics"
    ],
    "title": "Effective dielectric constant for a random medium",
    "url": "https://arxiv.org/abs/physics/0312117"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "d8c49d0d-02aa-435a-897e-c4002724fedd",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}