{
  "annotation_id": "19aee175-a6fd-44ed-9267-416d5b4b9c93",
  "date_created": "2026-03-02T18:00:36.437000Z",
  "date_modified": "2026-03-02T18:00:36.437000Z",
  "file_hash": "2788972f6ab45212451c507313b123f89d0282dfe4cfdd0b2bf089fad28e455a",
  "private": false,
  "record": {
    "abstract": "his study investigates the modifications of the thermal spectrum, at low\nfrequency, induced by an external damping on a system in heat contact with\ninternal fluctuating impurities. Those impurities can move among locations and\ntheir oscillations are associated with a loss function depending on the model.\nThe fluctuation properties of the system are provided by a potential function\nshaped by wells, in such a way that jumps between the stationary positions are\nallowed. The power spectral density associated with this dissipation mechanism\nshows a f^(-gamma)tail. The interest of this problem is that many systems are\ncharacterized by a typical f^(-\\gamma) spectral tail at low frequency. The\nmodel presented in this article is based on a threshold type behaviour and its\ngenerality allows applications in several fields. The effects of an external\nforce, introduced to produce damping, are studied by using both analytical\ntechniques and numerical simulations. The results obtained with the present\nmodel show that no reduction of the power spectral density is appreciable below\nthe main peak of the spectral density.",
    "arxiv_id": "physics/0110019",
    "authors": [
      "Erika D\u0027Ambrosio"
    ],
    "categories": [
      "physics.data-an"
    ],
    "doi": "10.1016/S0378-4371(02)01013-0",
    "title": "Characterization of a Low Frequency Power Spectral Density f^(-gamma) in   a Threshold Model",
    "url": "https://arxiv.org/abs/physics/0110019"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "95b90b4c-68b5-4556-9671-9d63b4ac8b66",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}