{
  "annotation_id": "7b6fa27b-1724-4127-a76e-8473f290d579",
  "date_created": "2026-03-02T18:01:48.339000Z",
  "date_modified": "2026-03-02T18:01:48.339000Z",
  "file_hash": "5a70ef66ea00655b7acbbfa9d520b890111919d7e752016ed8d9291b4298fb7e",
  "private": false,
  "record": {
    "abstract": "A classical description of the dynamics of a dissipative charged-particle\nfluid in a quadrupole-like device is developed. It is shown that the set of the\nclassical fluid equations contains the same information as a complex function\nsatisfying a Schrodinger-like equation in which Planck\u0027s constant is replaced\nby the time-varying emittance, which is related to the time-varying temperature\nof the fluid. The squared modulus and the gradient of the phase of this complex\nfunction are proportional to the fluid density and to the current velocity,\nrespectively. Within this framework, the dynamics of an electron bunch in a\nstorage ring in the presence of radiation damping and quantum-excitation is\nrecovered. Furthermore, both standard and generalized (including dissipation)\ncoherent states that may be associated with the classical particle fluids are\nfully described in terms of the above formalism.",
    "arxiv_id": "quant-ph/0112123",
    "authors": [
      "S. De Nicola",
      "R. Fedele",
      "V. I. Man\u0027ko"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1238/Physica.Regular.065a00345",
    "title": "Classical and Quantum-like approaches to Charged-Particle Fluids in a   Quadrupole",
    "url": "https://arxiv.org/abs/quant-ph/0112123"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "2b89f9ab-9ad6-4d20-9626-b27fb60de291",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}