{
  "abstract": "Mixed quantum–classical simulations in which a tunnelling coordinate is propagated as a wavefunction and its environment as classical trajectories under a quantum thermal bath (QTB), count the zero-point energy twice: the wavefunction carries it intrinsically and the QTB noise supplies it again. This work removes this double counting by partitioning the thermostat spectrum, assigning its zero-point part to the wavefunction and driving the bath with the thermal part only. In the harmonic Caldeira–Leggett limit the partitioned scheme reproduces the exact variance to 0.3–1.1%, with a residual given in closed form, whereas the unpartitioned hybrid (wavefunction coupled to a standard QTB) is off by a factor of two. In a dissipative double well the partition removes the zero-point heating and holds the quantum energy at 100 K; the heating that remains at 300 K is traced to the mean-field back-reaction.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 1,
  "authors": [
    {
      "name": "Mukul Dhiman"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/cp78nrqc9551w.bib",
  "cited_by": 0,
  "doi": null,
  "fulltext_url": null,
  "id": "cp78nrqc9551w",
  "issns": [],
  "landing_url": "https://hal.science/hal-05789904v1",
  "language": "en",
  "licence": "CC-BY-NC-ND-4.0",
  "licence_label": "CC BY-NC-ND 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by-nc-nd/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "hal",
      "0.phys"
    ],
    [
      "hal",
      "1.phys.phys"
    ],
    [
      "hal",
      "2.phys.phys.phys-comp-ph"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://hal.science/hal-05789904/document",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-09",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/cp78nrqc9551w.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:52Z",
      "native_id": "hal-05789904",
      "source": "hal",
      "url": "https://hal.science/hal-05789904v1"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "hal:2.phys.phys.phys-comp-ph",
      "subfield": "computational"
    }
  ],
  "title": "Solution to Double Counting of Zero-Point Energy: Partitioned Quantum Thermal Baths for Mixed Quantum–Classical Dynamics",
  "title_text": "Solution to Double Counting of Zero-Point Energy: Partitioned Quantum Thermal Baths for Mixed Quantum–Classical Dynamics",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:52Z",
  "url": "https://research.draconitic.com/paper/cp78nrqc9551w",
  "venue": "HAL",
  "versions": []
}